Q45 of 354 Page 12

If find .


Put x = cos 2θ






Dividing by cosθ both numerator and denominator,








Differentiating w.r.t x, we get





More from this chapter

All 354 →
43

If the derivative of tan–1 (a + bx) takes the value 1 at x = 0, prove that 1 + a2 = b.

 44

If y = cos–1 (2x) + 2 cos–1 < x < 0, find .

 46

If find .

 47

Differentiate with respect to x.