NCERT Exemplar Problems and Solutions (Part-IA) for class 10 Mathematics chapter 8, Introduction to Trigonometry and its Applications, is available here. This part contains solutions to multiple choice questions (1-8) form exercise 8.1 of NCERT Exemplar for Mathematics chapter 8. Every solution has been designed to give students an easy and apt explanation
Find below the NCERT Exemplar problems and their solutions for Class 10 Mathematics Chapter, Introduction to Trigonometry and its Applications:
Exercise 8.1
Multiple Choice Questions (Q. No. 1-8)
Question. 3 The value of the expression cosec (75° + θ) - sec (15° - θ) - tan (55° + θ) + cot (35° - θ) is
Question. 5 If cos(a + b) = 0, then sin (a - b) can be reduced to
(a) cosb (b) cos 2b (c) sina (d) sin 2a
Question. 6 The value of (tan l° tan 2° tan 3° ... tan89°) is
Question. 8If ΔABC is right angled at C then the value of cos (A + B) is
