![U: Evaluate \( \cos ^ { - 1 } ( \cos 10 ) \) Wo know that \( \cos ^ { - 1 } ( \cos \theta ) = 0 , \) if \( 0 \leq 0 \leq x \) and \( \pi \) auch thot \( \cos ( 4 \pi - 10 ) = \cos 10 \) \( \cos ^ { - 1 } ( \cos 10 ) = \cos ^ { - 1 } ( \cos ( 4 \pi - 10 ... U: Evaluate \( \cos ^ { - 1 } ( \cos 10 ) \) Wo know that \( \cos ^ { - 1 } ( \cos \theta ) = 0 , \) if \( 0 \leq 0 \leq x \) and \( \pi \) auch thot \( \cos ( 4 \pi - 10 ) = \cos 10 \) \( \cos ^ { - 1 } ( \cos 10 ) = \cos ^ { - 1 } ( \cos ( 4 \pi - 10 ...](https://toppr-doubts-media.s3.amazonaws.com/images/1655045/e3660931-5e61-4037-9c60-49cc45301614.jpg)
U: Evaluate \( \cos ^ { - 1 } ( \cos 10 ) \) Wo know that \( \cos ^ { - 1 } ( \cos \theta ) = 0 , \) if \( 0 \leq 0 \leq x \) and \( \pi \) auch thot \( \cos ( 4 \pi - 10 ) = \cos 10 \) \( \cos ^ { - 1 } ( \cos 10 ) = \cos ^ { - 1 } ( \cos ( 4 \pi - 10 ...
![Prove that (i) sin 70^(@) cos 10^(@) -cos 70^(@) sin 10^(@) =(sqrt(3))/(2) (ii) cos 50^(@) cos 10^(@) -sin 50^(@) sin 10^(@) =(1)/(2) (ii) cos 80^(@) cos 20^(@) + sin 80^(@) sin 20^(@) =(1)/(2) (iv) sin 36^(@) cos 9^(@) + cos 36^(@) sin 9^(@) =(1 ... Prove that (i) sin 70^(@) cos 10^(@) -cos 70^(@) sin 10^(@) =(sqrt(3))/(2) (ii) cos 50^(@) cos 10^(@) -sin 50^(@) sin 10^(@) =(1)/(2) (ii) cos 80^(@) cos 20^(@) + sin 80^(@) sin 20^(@) =(1)/(2) (iv) sin 36^(@) cos 9^(@) + cos 36^(@) sin 9^(@) =(1 ...](https://static.doubtnut.com/q-thumbnail/52780865.png)
Prove that (i) sin 70^(@) cos 10^(@) -cos 70^(@) sin 10^(@) =(sqrt(3))/(2) (ii) cos 50^(@) cos 10^(@) -sin 50^(@) sin 10^(@) =(1)/(2) (ii) cos 80^(@) cos 20^(@) + sin 80^(@) sin 20^(@) =(1)/(2) (iv) sin 36^(@) cos 9^(@) + cos 36^(@) sin 9^(@) =(1 ...
Prove that cos10°.cos30°. cos50°.cos 70° = 3/16 - Sarthaks eConnect | Largest Online Education Community
![What is the value of sin(10)cos(20)sin(30)cos(40)sin(50)cos(60)sin(70)cos(80)? Not in radians, in degrees. | Socratic What is the value of sin(10)cos(20)sin(30)cos(40)sin(50)cos(60)sin(70)cos(80)? Not in radians, in degrees. | Socratic](https://useruploads.socratic.org/IK25ycsASbety18tGT8x_New%20Doc%202018-01-06_1.jpg)
What is the value of sin(10)cos(20)sin(30)cos(40)sin(50)cos(60)sin(70)cos(80)? Not in radians, in degrees. | Socratic
Evaluate : (sin 80°/cos 10°) + sin 59° sec 31° - Sarthaks eConnect | Largest Online Education Community
![Evaluate (a) sin 30°(b) sin 150° (c) sin 60°(d) sin 120° (e) cos 40°(f) cos 140° (c) cos 10°(d) cos 170° - ppt download Evaluate (a) sin 30°(b) sin 150° (c) sin 60°(d) sin 120° (e) cos 40°(f) cos 140° (c) cos 10°(d) cos 170° - ppt download](https://images.slideplayer.com/14/4212623/slides/slide_2.jpg)
Evaluate (a) sin 30°(b) sin 150° (c) sin 60°(d) sin 120° (e) cos 40°(f) cos 140° (c) cos 10°(d) cos 170° - ppt download
![Let a = cos 10 , b = cos 50 and c = cos 70 Q The - Maths - Trigonometric Functions - 12760505 | Meritnation.com Let a = cos 10 , b = cos 50 and c = cos 70 Q The - Maths - Trigonometric Functions - 12760505 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_feccce26c840885681e215842bf56e33.png)