-2 cos 2θ
-2 sin2θ
1 - 2 cos 2θ
1 - 2 sin 2θ
Correct answer is A
y = (cosθ - sinθ)
dy/dx = 2(cosθ - sinθ)(-sinθ - cosθ)
dy/dx = 2(-cosθsinθ - cos2θ + sin2θ)
dy/dx = 2(- cos2θ + sin2θ)
= -2(cos2θ - sin2θ)
= -2(1 - 2sin2θ)
= -2cos2θ
Find the equation whose roots are 34 and -4...
Solve 3x - 2y = 10 and x + 3y = 7 simultaneously ...
P = {x:(x - 2)(x + 3) (x - 4)(x + 5) = 0}. The elements in P are ...
Given that 12log10P=1, find the value of P....
What is the least possible value of 91+2x2 if 0 ≥ x ≥ 2?...
Suppose x varies inversely as y, y varies directly as the square of t and x = 1, when t = 3. Fi...