if cosx +cos²x=1, then find the value of sin²x+sin⁴x
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4
YOUR ANSWER IS HERE
AS WE KNOW THAT
1-cos sq x=sinx
SO
ATQ
cosx +cos sq x=1
cosx=1-cos sq x
so cosx=sin sq x
SO
NOW
sin sq x+sin4 x=cosx +cos sq x WHICH IS EQUAL TO 1
AS WE KNOW THAT
1-cos sq x=sinx
SO
ATQ
cosx +cos sq x=1
cosx=1-cos sq x
so cosx=sin sq x
SO
NOW
sin sq x+sin4 x=cosx +cos sq x WHICH IS EQUAL TO 1
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