हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएचएससी विज्ञान कक्षा ११

Find the values of sin(480°)

Advertisements
Advertisements

प्रश्न

Find the values of sin(480°)

योग
Advertisements

उत्तर

sin(480°) = sin(360° + 120°)

= sin 120°

= sin(90° + 30°)

= cos 30°

= `sqrt(3)/2`

shaalaa.com
Trigonometric Functions and Their Properties
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Trigonometry - Exercise 3.3 [पृष्ठ १०४]

APPEARS IN

सामाचीर कलवी Mathematics - Volume 1 and 2 [English] Class 11 TN Board
अध्याय 3 Trigonometry
Exercise 3.3 | Q 1. (i) | पृष्ठ १०४

संबंधित प्रश्न

Find the values of sin (– 1110°)


Find the value of the trigonometric functions for the following:
cos θ = `- 2/3`, θ lies in the IV quadrant


Show that `sin^2  pi/18 + sin^2  pi/9 + sin^2  (7pi)/18 + sin^2  (4pi)/9` = 2


If sin A = `3/5` and cos B = `9/41, 0 < "A" < pi/2, 0 < "B" < pi/2`, find the value of cos(A – B)


If x cos θ = `y cos (theta + (2pi)/3) = z cos (theta + (4pi)/3)`. find the value of xy + yz + zx


Prove that sin(A + B) sin(A – B) = sin2A – sin2B


Prove that cos(A + B) cos(A – B) = cos2A – sin2B = cos2B – sin2A


Find the value of cos 2A, A lies in the first quadrant, when cos A = `15/17`


If A + B = 45°, show that (1 + tan A)(1 + tan B) = 2


Express the following as a sum or difference
sin 5θ  sin 4θ


Express the following as a product
sin 50° + sin 40°


Show that `(sin 8x cos x - sin 6x cos 3x)/(cos 2x cos x - sin 3x sin 4x)` = tan 2x


Prove that `(sin 4x + sin 2x)/(cos 4x + cos 2x)` = tan 3x


Prove that `sin  theta/2 sin  (7theta)/2 + sin  (3theta)/2 sin  (11theta)/2` =  sin 2θ sin 5θ


Prove that cos(30° – A) cos(30° + A) + cos(45° – A) cos(45° + A) = `cos 2"A" + 1/4`


Prove that `(sin(4"A" - 2"B") + sin(4"B" - 2"A"))/(cos(4"A" - 2"B") + cos(4"B" - 2"A"))` = tan(A + B)


If A + B + C = 180°, prove that sin2A + sin2B − sin2C = 2 sin A sin B cos C


If A + B + C = 2s, then prove that sin(s – A) sin(s – B)+ sin s  sin(s – C) = sin A sin B


Choose the correct alternative:
`1/(cos 80^circ) - sqrt(3)/(sin 80^circ)` = 


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×