If y=2xCos2x-Sin2x, find dy/dx when x=π/2.

find all the values: sin2x- sqrt3cosx=0

if sin2x=3sin2y, find 2tan(x-y)

1+sin2x/sin2x=1+1/2(secx)(cscx)

(sec6x+sin2x)/(sin6x-sin2x)=tan4xcot2x

find sin2x, cos2x, and tan2x if sinx= -2/sqrt 5 and x terminates in quadrant III

Prove that sin2x+cos2x-1/sin2x+cos2x+1=tanx

find the value of x if sin2x+3cosx=2 then cos3x+sec3x is

secx = 4 in Q2 find sin2x,cos2x,tan2x

f(x)= 1/4 * (sin2x)^2 find dy/dx d/dx (1/4 * (sin2x)^2)= (sin2xcos2x)/ 2 ?

sin2x = cos(3x -10), find tanx

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