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If cos x=(-3)/(5) " and " .(pi)/(2) lt...

If cos `x=(-3)/(5) " and " .(pi)/(2) lt x lt pi` find the values of
`(i) " sin .(x)/(2) " " (ii) " cos " (x)/(2) " " (iii) " tan " (x)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
`(i) (2sqrt(5))/(5) " " (ii) (1)/(sqrt(5)) " " (iii) 2`
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