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Grade 11Trigonometry

the value of cotx/cot2x – tanx/cot 2x is …...
a).1 b).2 c).-1 d).4

Profile image of keerthi
8 Years agoGrade 11
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1 Answer

Profile image of Sankalp Das
8 Years ago
=cotx/cot2x – tanx/cot 2x=(cotx-tanx)/cot2x=(1-tan^2x)/tanx ×2tanx/1-tan^2x=2Therefore b option is correct