sin square A - cos square A =
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see, sinsquareA + cossquareA is 1 but sinsquareA- cossquareA?
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sin sqr A-cos sqrA= 1-cos sqr A-cos sqr A=1-2cossqrA.
sonu450:
but it just sin squ A - cos squ A
sry
then how to solve this ?? now
pls catch ur answer
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