$\cos 75°=?$

Important Questions on Trigonometry

HARD

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 78

$\tan \frac{13\pi }{12}=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 79

$\left(\sin 70°\cos 10°-\cos 70°\sin 10°\right)=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 80

$\left(\sin 36°\cos 9°+\cos 36°\sin 9°\right)=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 81

$\cos 80°\cos 20°+\sin 80°\sin 20°=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 82

$\cos 50°\cos 10°-\sin 50°\sin 10°=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 83

$\sin \left(40°+\theta \right)\cos \left(10°+\theta \right)-\cos \left(40°+\theta \right)\sin \left(10°+\theta \right)=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 84

$\sin \frac{7\pi }{12}\cos \frac{\pi }{4}-\cos \frac{7\pi }{12}\sin \frac{\pi }{4}=?$

EASY

11th CBSE

IMPORTANT

Senior Secondary School Mathematics FOR CLASS 11>Chapter 36 - Trigonometry>EXERCISE>Q 85

$\sin \frac{\pi }{4}\cos \frac{\pi }{12}+\cos \frac{\pi }{4}\sin \frac{\pi }{12}=?$