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Question

If sinθ=35 then show that cosθ1tanθ2cotθ=15

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Solution

sinθ=35 259=16=4
From triangle cosθ=45
tanθ=34&cotθ=43
cosθ1tanθ2cotθ substituting values in this expression
45432×43=81583=15
Hence, proved

1330782_1240207_ans_3525f28e09ce4d328ecdd69eed078990.png

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