need help with proof of identities. plz explain in detail really can't find solution.
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GuntasDhillon:
this Q is from what grade?
a level
class.?
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=1/8(1−cos4θ)
=1/4sin^2 2θ
=1/4(2sinθcosθ)2
=1/4(4sin^2θcos^2θ)
=sin2θcos2. hence prove
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_________________
=1/8(1−cos4θ)
=1/4sin^2 2θ
=1/4(2sinθcosθ)2
=1/4(4sin^2θcos^2θ)
=sin2θcos2. hence prove
_____________________
HOPE IT HELPS U
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┈┈┈┈┈▏▕┈┈┈┈
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▉▉▉┈┈┈▕▂▂▂▏
▉▉▉┈┈┈▕▂▂▂▏
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THEN PLZ FOLLOW ME. └(^o^)┘
how did u do 2nd step
yes
ok i follow you but promise u help me with maths ok
btw it helps thx
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