Math, asked by abhiramreddy80, 4 months ago

show that (sin∅+cos∅)²-(sin∅-cos∅)²=2 sin 2∅.

Answers

Answered by sandy1816

2

(sinØ+cosØ)²-(sinØ-cosØ)²

=1+2sinØcosØ-1+2sinØcosØ

=sin2Ø+ain2Ø

=2sin2Ø

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