Advertisements
Advertisements
Question
Find the values of sin (– 1110°)
Advertisements
Solution
sin(– 1110°) = – sin(1110°)
= – sin(360° × 3 + 30°)
= – sin 30°
= `-1/2`
APPEARS IN
RELATED QUESTIONS
Find the values of sin(480°)
Find the values of `tan ((19pi)/3)`
Find the value of the trigonometric functions for the following:
cos θ = `2/3`, θ lies in the I quadrant
Find the value of the trigonometric functions for the following:
tan θ = −2, θ lies in the II quadrant
If sin x = `15/17` and cos y = `12/13, 0 < x < pi/2, 0 < y < pi/2`, find the value of tan(x + y)
Find sin(x – y), given that sin x = `8/17` with 0 < x < `pi/2`, and cos y = `- 24/25`, x < y < `(3pi)/2`
Find the value of tan `(7pi)/12`
Prove that cos(30° + x) = `(sqrt(3) cos x - sin x)/2`
Show that tan 75° + cot 75° = 4
Prove that cos(A + B) cos C – cos(B + C) cos A = sin B sin(C – A)
Prove that sin2(A + B) – sin2(A – B) = sin2A sin2B
Prove that (1 + tan 1°)(1 + tan 2°)(1 + tan 3°) ..... (1 + tan 44°) is a multiple of 4
Express the following as a sum or difference
2 sin 10θ cos 2θ
Express the following as a product
sin 75° sin 35°
Express the following as a product
sin 50° + sin 40°
Prove that 1 + cos 2x + cos 4x + cos 6x = 4 cos x cos 2x cos 3x
Prove that cos(30° – A) cos(30° + A) + cos(45° – A) cos(45° + A) = `cos 2"A" + 1/4`
If A + B + C = 180°, prove that sin A + sin B + sin C = `4 cos "A"/2 cos "B"/2 cos "C"/2`
If A + B + C = `pi/2`, prove the following sin 2A + sin 2B + sin 2C = 4 cos A cos B cos C
