Question

Evaluate
( sin theeta + cos theeta )² + ( sin theeta - cos theeta)²​

Answer 1

Answer:

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Answer 2

Answer:

sin^2x+cos^2x+2×sinxcosx +sin^2+cos^2×-2sinxcosx

now sin^2x+cos^2x=1

so 1 + 1 = 2