SOLUTION: cos(sin−1 (3/8)
Algebra.Com
Question 681796: cos(sin−1 (3/8)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
cos(sin−1 (3/8)
----
you want the cos of the angle whose sin = 3/8
-------
If the sin is 3/8 , y = 3 and r = 8
----
Solve for "x"
x^2 = r^2-y^2 = 64-9
x = sqrt(55)
------------
Then cos(sin^-1(3/8)) = x/r = sqrt(55)/8
====================
Cheers,
Stan H.
RELATED QUESTIONS
exact value
sin(cos^-1... (answered by oscargut)
Cos^-1 (Sin... (answered by Alan3354)
1) Find all t in the interval [0, 2π] satisfying 2(sin t)2 − 3 sin t + 1 = 0
(answered by josgarithmetic)
Verify the identity
3 cos^2 B − 3 sin^2 B = 6 cos^2 B − 3... (answered by Alan3354)
If cos^2 x + cos x = 1. so, sin^12 x + 3 sin^10 x + 3 sin^8 x + sin^6 x =... (answered by Alan3354)
Write the given expression in terms of x and y only.
sin(tan^−1(x) −... (answered by ikleyn)
Find all solutions of each of the equations in the interval [0,2pi).
a)... (answered by KMST)
Evaluate sin(cos^-1(1/2)+cos^-1(1/3))
(cos^-1 = cos... (answered by ikleyn)
Verify the expression: cos^3 + sin^2 cos = cos
Cos^3 + sin^2 cos = cos
Cos x cos^2 + (answered by Alan3354)