Math, asked by tanishasharma963431, 6 months ago

(i) sin (90° - A) sin A -cos (90° - A) cos A

Answers

Answered by karenfung0911

0

Answer:

1

Step-by-step explanation:

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Answered by bagkakali

0

Answer:

sin(90°-A).sinA-cos(90°-A).cosA

=cosA.sinA-sinA.cosA

=sinA.cosA-sinA.cosA

=0

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