" (iii) "sin3x=3sin x-4sin^(3)x

Prove that : sin3x=3sinx-4sin^(3)x

Show that sin 3 x=3 sin x-4 sin ^(3) x

Prove that: sin3x=3sinx-4sin^3x

Solve sin^(2)x+(1)/(4)sin^(2)3x=sin x sin^(2)3x

From the identity "sin" 3x = 3 "sin"x - 4"sin"^(3)x it follows that if x is real and |x| lt 1 , then

From the identity "sin" 3x = 3 "sin"x - 4"sin"^(3)x it follows that if x is real and |x| lt 1 , then

If sin ^(2) x + (1)/(4) sin^(2) 3x = sin x sin^(2) 3 x then x =

Evaluate the following limit: (lim)_(x->0)(3sin x-4sin^3x)/x

Solve (i)7cos^(2)theta+3sin^(2)theta=4(ii)2sin^(2)x+sin^(2)2x=2( iii) 4sin x sin2x sin4x=sin3x

Prove that: (i) sin 3x+"sin" 2x-"sin" x = 4 sin x cos((x)/(2))cos((3x)/(2)) (ii) ("sin" 3x+"sin" x)"sin" x+(cos 3x-cos x)cos x=0.