Let a = (m, 3, -4) and b = (2, -n, 8) be the vectors. What are the value of m and n respectively so that a and b are parallel to each other?
Anonymous Quiz
34%
-1 and 6
29%
6 and 1
20%
1 and 6
17%
-1 and -6
❤6
The angle between the two vectors is always less than or equal to 180°.
Anonymous Quiz
65%
True
35%
False
❤2
Given two vectors a = i - 2xj + k and b = i + j, what is the value of x so that the angle between the two vectors is π/4?
Anonymous Quiz
20%
1/4
63%
-1/4
15%
4
2%
-4
❤5
Given |a + b| = 2, where a and b are unit vectors. Then what is the value of |a + 4bl?
Anonymous Quiz
44%
5
26%
7
15%
3
14%
4
❤6🤔1
Which one of the following is equal to antilog (-2)?
Anonymous Quiz
6%
0.1
13%
200
52%
0.02
29%
0.01
❤2
The __________ you run, the earlier you'll arrive.
Anonymous Quiz
31%
fast
45%
faster
14%
fastest
9%
faster than
👏5
Believe in yourself and all that you are; know that there is something inside you that is greater than any obstacle.
❤8
❤4
Which of the following elements required by plants in large quantity?
Anonymous Quiz
74%
Potassium and calcium
19%
Carbon and zinc
4%
Cobalt and iron
3%
Boron and copper
If f(x) = x² -5x +1, then f(x+2) is equal to:
Anonymous Quiz
17%
x²-x-6
26%
x²-x+1
53%
x²-x-5
3%
x²-x-1
❤2
What are the negative effects of using social media for long time?
Using social media for extended periods can have several negative effects, including:
1. Mental Health Issues: Prolonged use of social media has been linked to increased feelings of anxiety, depression, and loneliness. Constant comparison with others' curated lives can lead to low self-esteem and body image issues.
2. Addiction: Social media platforms are designed to be engaging, which can lead to addictive behaviors. This can result in excessive screen time, neglect of real-life responsibilities, and decreased productivity.
3. Sleep Disruption: Late-night scrolling and the blue light emitted by screens can interfere with sleep quality and duration, leading to fatigue and cognitive impairments.
4. Reduced Face-to-Face Interaction: Heavy social media use can diminish the quality and quantity of in-person interactions, leading to feelings of isolation and weakening social skills.
5. Cyberbullying: The anonymity of social media can lead to negative interactions, including bullying and harassment, which can have serious emotional consequences for victims.
6. Misinformation and Polarization: Social media can spread misinformation rapidly, contributing to confusion and division within communities, as users may become entrenched in echo chambers.
7. Impact on Attention Span: Frequent use of social media can lead to shorter attention spans and difficulties in focusing on tasks that require sustained concentration.
8. Unrealistic Expectations: Exposure to idealized representations of life can create unrealistic expectations about personal achievements, relationships, and lifestyles.
9. Privacy Concerns: Sharing personal information on social media can lead to privacy issues, including data breaches and identity theft.
10. Physical Health Issues: Sedentary behavior associated with prolonged social media use can contribute to various health problems, including obesity and cardiovascular issues.
@maths_group11
Using social media for extended periods can have several negative effects, including:
1. Mental Health Issues: Prolonged use of social media has been linked to increased feelings of anxiety, depression, and loneliness. Constant comparison with others' curated lives can lead to low self-esteem and body image issues.
2. Addiction: Social media platforms are designed to be engaging, which can lead to addictive behaviors. This can result in excessive screen time, neglect of real-life responsibilities, and decreased productivity.
3. Sleep Disruption: Late-night scrolling and the blue light emitted by screens can interfere with sleep quality and duration, leading to fatigue and cognitive impairments.
4. Reduced Face-to-Face Interaction: Heavy social media use can diminish the quality and quantity of in-person interactions, leading to feelings of isolation and weakening social skills.
5. Cyberbullying: The anonymity of social media can lead to negative interactions, including bullying and harassment, which can have serious emotional consequences for victims.
6. Misinformation and Polarization: Social media can spread misinformation rapidly, contributing to confusion and division within communities, as users may become entrenched in echo chambers.
7. Impact on Attention Span: Frequent use of social media can lead to shorter attention spans and difficulties in focusing on tasks that require sustained concentration.
8. Unrealistic Expectations: Exposure to idealized representations of life can create unrealistic expectations about personal achievements, relationships, and lifestyles.
9. Privacy Concerns: Sharing personal information on social media can lead to privacy issues, including data breaches and identity theft.
10. Physical Health Issues: Sedentary behavior associated with prolonged social media use can contribute to various health problems, including obesity and cardiovascular issues.
@maths_group11
❤5🔥3