Math, asked by karsubhayan04, 1 month ago

tan theta=5/12 sin theta is negative. now cos theta=?​

Answers

Answered by dkchakrabarty01
0

Answer:

sec^2 theta=1+tan^2 theta=1+(5/12)^2=169/144

sec theta=+13/12 or -13/12

since sin theta is negative and tan theta is positive, it is in 3rd quadrant, so cos theta=-12/13

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