The value of tan 1° tan 2° tan 3° ….. tan89° is equal to
Explore the concepts of Trigonometric Functions with these carefully selected MCQs from Chapter 3 of Class 11 NCERT Mathematics (CBSE 2024-25). This chapter introduces important topics like trigonometric identities, angles, radian and degree measures, and the domain and range of trigonometric functions. These questions are designed to evaluate your understanding and boost your problem-solving abilities. Whether you are preparing for exams or revising key concepts, these MCQs offer an interactive way to learn and practice trigonometry. Strengthen your skills, improve accuracy, and gain confidence with these focused questions that make mastering trigonometry easier and more enjoyable.
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Choice (b) is correct tan 1° tan 2° tan 3° ….. tan89° = (tan 1° tan89°) (tan 2° tan 88°)….(tan 44° tan 46°) tan 45°
= {tan 1° tan (90° – 1°)} {tan 2° tan (90° – 2°)}….. {tan 44° tan (90° – 44°)} tan 45°
= (tan 1° cot 1°) (tan 2° cot 2°)…. (tan 44° cot 44°) tan45°
= (1) (1)…(1)(1) = 1
This question related to Chapter 3 maths Class 11th NCERT. From the Chapter 3: Trigonometric Functions. Give answer according to your understanding.
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