what is sin^4x +cos^4x
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1 - 2sin^2xcos^2x
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vpsingh9597gmailcom:
thank you but are you sure?
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please refer to the attachment.
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please explain me that how do you add 2 to the RHS ?
I don't get it
ohk leave it plz give a full explanation of the question
I simply used completing the square method
by adding and subtracting the missing term at the same time so that value of equation will not change
oh...thank you bro...
welcome
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