please prove the above Question with proper steps !
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Step-by-step explanation:
I hope you can understand this...
PLZZ MARK AS BRAINLESIT
Step-by-step explanation:
sin 4 A+cos 4 A
We have (a 2 +b 2 )2 =a4 +b4 +2a2b2
⇒a4 +b4 =(a2 +b2)2-a2b2
Take a=sinA and b=cosA we get
sin4A+cos4A=(sin 2 A+cos 2 A)2−2sin2A cos2A
=1−2sin2A cos2A
: hence proved.
here's your answer @jiya871