Prove that Sin5A=5SinA-20Sin^3A+16Sin5A
pepy:
question is wrong the last one is sin^5A
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sin(2A+3A) apply the formula
in sin2A=2sinAcosA
cos2A=cos^2A-sin^2A
sin3A=3sinA-4sin^3A
cos3A=4cos^3A-3cosA
when u apply all these u get even the cos so change everything with respect to sin
=sin2Acos3A+cos2Asin3A
substitute the formulas
u will get the answer
if didn't get please comment or message me
I will reply u as fast as possible
hope this helps u :)
in sin2A=2sinAcosA
cos2A=cos^2A-sin^2A
sin3A=3sinA-4sin^3A
cos3A=4cos^3A-3cosA
when u apply all these u get even the cos so change everything with respect to sin
=sin2Acos3A+cos2Asin3A
substitute the formulas
u will get the answer
if didn't get please comment or message me
I will reply u as fast as possible
hope this helps u :)
please add me as brainilest
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