Question

if cot=15/16,evaluate (1-cos)(1+cos)/(1+sin)(1-sin)​

Answer 1

Answer:

cot=15/16

tan=16/15

1-cos^2/1-sin^2

= sin^2/cos^2. [sin^2+cos^2=1 ]

=tan^2

=256/225

hope this will help you

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