CBSE 10th Class Mathematics
Past year question paper
Year 2020
SET 1, Code Number – 30/5/1
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Question Number – 12
Trigonometric Excises
Trigonometric Function
TAN AND COT
Deepak BoraNewbie
Simplest form of [1 + tan² A] / [1 + cot² A] ‘ ____________’
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[1 + tan² A] / [1 + cot² A] = tan² A