bracket cos square 45 x square 30 degree close bracket open sin square 30 + 4 cos square 45 - sin square 60
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please pardon if my answer is wrong...
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vartikajha:
in last sec square 60
u mean instead of sin square
yes
see my answer, I have edited it
ok
in first cosec sqare 45
sorry
see my answer, I have edited it
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