the value of cotx/cot2x – tanx/cot 2x is …...a).1 b).2 c).-1 d).4
keerthi , 6 Years ago
Grade 11
Trigonometry> the value of cotx/cot2x – tanx/cot 2x is ...
1 AnswersSankalp Das
Last Activity: 6 Years ago
=cotx/cot2x – tanx/cot 2x=(cotx-tanx)/cot2x=(1-tan^2x)/tanx ×2tanx/1-tan^2x=2Therefore b option is correct
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