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Prove that (i) " 2sin " (5pi)/(12) "...

Prove that
`(i) " 2sin " (5pi)/(12) " sin " (pi)/(12)=(1)/(2)`
`(ii) " 2 cos " (5pi)/(12) " cos " .(pi)/(12)=(1)/(2)`
`(iii) " 2 sin ".(5pi)/(12) " cos " (pi)/(2) = ((2+sqrt(3))/(2))`

Answer

Step by step text solution for Prove that (i) " 2sin " (5pi)/(12) " sin " (pi)/(12)=(1)/(2) (ii) " 2 cos " (5pi)/(12) " cos " .(pi)/(12)=(1)/(2) (iii) " 2 sin ".(5pi)/(12) " cos " (pi)/(2) = ((2+sqrt(3))/(2)) by MATHS experts to help you in doubts & scoring excellent marks in Class 11 exams.

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