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The derivative of (sin x + cos x)² with respect to x is
Choice (b) is correct. Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x) ⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)} ⇒dy/dx = 2(cos² x - sin² x) = 2 cos 2Read more
Choice (b) is correct.
Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x
dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x)
⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)}
⇒dy/dx = 2(cos² x – sin² x) = 2 cos 2x
This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding.
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If y = sin a cos x, then dy/dx is
Choice (c) is correct. y = sin a cos x ⇒dy/dx = d/dx (sin a cos x) = sin a (d/dx)(cos x) = sin a (- sin x) = - sin a sin x This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding. For more please visit hereRead more
Choice (c) is correct.
y = sin a cos x ⇒dy/dx = d/dx (sin a cos x) = sin a (d/dx)(cos x) = sin a (- sin x) = – sin a sin x
This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-12
To compare the variability of two distributions we calculate
Choice (a) is correct. Comparison of co-efficients of variation determines the variability of two distributions (series). This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visit here: https://wwRead more
Choice (a) is correct.
Comparison of co-efficients of variation determines the variability of two distributions (series).
This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13
What does a child say if neither of the children standing next to them are taller?
If none of the children next to the child is taller, the child will say "1". This is because the child is the tallest among the three in the sequence. Thus, the child will indicate they are the tallest by saying "1". Click here for more: https://www.tiwariacademy.com/ncert-solutions-class-6-maths-gaRead more
If none of the children next to the child is taller, the child will say “1”. This is because the child is the tallest among the three in the sequence. Thus, the child will indicate they are the tallest by saying “1”.
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions-class-6-maths-ganita-prakash-chapter-3/
A line can be extended:
Indefinitely in both ways. A line has no endpoints and can be extended infinitely in both directions. This is the fundamental property of a line in geometry, continuing infinitely without a stop. Click here for more: https://www.tiwariacademy.com/ncert-solutions-class-6-maths-ganita-prakash-chapter-Read more
Indefinitely in both ways.
A line has no endpoints and can be extended infinitely in both directions. This is the fundamental property of a line in geometry, continuing infinitely without a stop.
Click here for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions-class-6-maths-ganita-prakash-chapter-2/