If x = a cos 4 θ, y = a sin 4 θ, then dy dx at θ = 3 4 is
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
If x = a cos4 θ, y = a sin4 θ, then \(\frac{\mathrm{dy}}{\mathrm{dx}}\) at θ = \(\frac{3 \pi}{4}\) is
- –1
- 1
- –a2
- a2
Answer
(A) –1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- The tangent to the curve 5x 2 + y 2 = 1 at ( 1 3 ,- 2 3 ) passes through the point
- If y= _ u(x) ^ v(x) f(t) d t let us define d y d x in a different manner as d y d x =v^ (x) f^ 2 (v(x))-u^…
- Limit _ x 1 (1-x+[x-1]+[1-x]) = where [x] denotes greatest integer function
- The value of _ x 1 (2-x)^ x 2 is equal to...
- If y= [x+ 1+x^ 2 ]^ n , then [1+x^ 2 ] d^ 2 y d x^ 2 +x d y d x is
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. STATEMENT …
- Let f(x)=x^ ( 1 x ) . when x ≠ 0 and f (x) = 0, when x = 0. Then f (x) will be differentiable at x = 0 if :
- The value of _ x 2 z^ x +z^ 3-x -6 z^ -x -z^ 1-x is :
More Limit, Continuity and Differentiability questions · Browse all practice questions