InterviewSolution
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InterviewSolution
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19. Ithen evaluate1-sin) (2*2 sing)(1 + cos) (2-2cos) |
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Answer» tan x = 8/15; (H)^2 = (8)^2 + (15)^2= 64 + 225 = 289 = (17); (1- sinx)(2+2sinx) _____________________ (1+ cosx)( 2-2 sinx); = = (1- sinx)(2+2 sinx)/ (1+ cosx)(2-2sinx) = (1 + 8/17)(2+2 (8/17) / (1+ 15/17)(2+2(15/17)) = (17+8/17)(34+16/17) / (17+15/17)(34+30/17) = (25)(50)/(32)(64) = = 1250 / 2048 = 625/1024 = = 25/32 |
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