Math, asked by neeldoctor9010, 6 months ago

if sin theta = -3/5 and theta lies in the thrid quadrant then the value of cos theta /2 is​

Answers

Answered by dkchakrabarty01
0

Answer:

1 - 2cos^2 theta/2 = cos theta= √(1-sin^2theta) = 4/5

2cos^2theta/2= 1-4/5= 1/5

cos^2theta/2 = +/-1/√5

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