NCERT Class XI Mathematics - Limits and Derivatives - Solutions

Question : 57

Total: 72

sin(x + a)

Solution:

Let f(x) = sin (x + a) ... (i)
Differentiating (i) with respect to x, we get

( f (x)) = cos (x + a) ⋅(1 + 0) = cos(x + a)
∴

[sin (x + a)] cos (x + a)

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