Math, asked by raffiz953, 11 months ago

Tan(45•-A)= (CosA+SinA)/(CosA-SinA)

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Answered by adityarajsharma18

13

Answer:

tan (45°-A)=(cosA-sinA)/(cosA+sinA) is proved.

but tan(45°-A)=(cosA+sinA)/(cosA-sinA) is not proved.

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