Assertion (A) : For an acute angle θ, value of cosec θ cannot be 1/√2. Reason (R) : cosec θ ≥ 1 for 0° ≤ θ ≤ 90°

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Cosecant, Secant, and Cotangent as Reciprocal Ratios, Range of Values of Trigonometric Ratios | PadhAiPro

Question

Assertion-ReasonCosecant, Secant, and Cotangent as Reciprocal RatiosRange of Values of Trigonometric RatiosCBSE PYQ

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Prove the following trigonometric identity : (1 + cosec A)/cosec A = cos²A/(1 − sin A)

Which of the following statements is true ?

Range of Values of Trigonometric Ratios

Prove that (cos A + sin A – 1)/(cos A – sin A + 1) = cosec A – cot A

(cot θ + tan θ) equals :

The maximum value of 1/cosec α is

Assertion (A): The value of sin θ = 4/3 is not possible. Reason (R): 3, 4, 5 form a Pythagorean triplet.