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Sir I I wanted to get the question of 21 plz for exam perpetration plz sir can u provide me the answer fast

Sir I I wanted to get the question of 21 plz for exam perpetration plz sir can u provide me the answer fast

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Grade:10

1 Answers

Vikas TU
14149 Points
7 years ago
Just put all the values of trig. ratios and hence the soln. beomes =>
Taking L.H.S. we get,
(1/root3)^2 + 0.5*(1/root2)^2 + 3/12  + 1/3
=> 7/6
that is R.H.S 
Hence proved.

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