Math, asked by gamingnd39, 6 months ago

A
COSA
Itsina
COSA
1-sina

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Answers

Answered by studyfellow

2

Step-by-step explanation:

cosA/1−sinA=1+sinA/cosA

Left hand side

cosA1−sinA=(cosA)(1+sinA)(1−sinA)(1+sinA)

=(cosA)(1+sinA)(1−sin2A)

=(cosA)(1+sinA)(cos2A)

=1+sinAcosA

=Right hand side

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