secθ when expressed in terms of cotθ, is equal to :

Question

MCQ (Single)Expressing Trigonometric Ratios in Terms of Other RatiosCBSE PYQ

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It is given that sin (A − B) = sin A cos B − cos A sin B. Use it to find the value of sin 15°.

If sin A = y, then express cos A and tan A in terms of y.

TextTrigonometric Ratios of 30 DegreesTrigonometric Ratios of 45 DegreesExpressing Trigonometric Ratios in Terms of Other Ratios

If tan θ + sin θ = m and tan θ − sin θ = n, then prove that m² − n² = 4√mn.

Prove that : (cot A − 1)/(2 − sec² A) = cot A/(1 + tan A)