Question

prove that : sec(1-sin) (sec+tan) = 1​

Answer 1

Answer:

sec(1-sin)(sec+tan)

(sec-sec sin)(sec+tan)

(sec-1/cos×sin)(sec+tan)

(sec-sin/cos)(sec+tan)

sin/cos=tan

(sec-tan)(sec+tan)

sec square-tan square=1

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