1.

#.. की 63% | + 28 yJ» EB3dos1F T 2 1 3j¢f=tid

Answer»

2sin^2 63+2sin^2 27+1 / 3cos^2 17+3cos^2 73-2

2(sin^2 63+sin^2 27)+1 / 3(cos^2 17 +cos^2 73 -22(sin^2 63+cos^2 63)+1 / 3(cos^2 17+sin^2 17-22(1)+1 / 3(1)-22+1 / 3-23/1=3



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