Convert the angle in degrees to radians Round to two decimal

Convert the angle in degrees to radians. Round to two decimal places. 145 degree 145 degree =______radians (Round to two decimal places as needed.) Use an identity to find the value of the expression. Do not use a calculator. sin 64 degree csc 64 degree sin 64 degree csc 64 degree =_______(simplify your answer. Type an exact an) A tower that is 107 feet tall casts a shadow 112 feet long. Find the angle of elevation of the sun to the nearest degree. The angle of elevation is_______degrees. (Round to the Evaluate the trigonometric function at the quadrantal angle, or

Solution

2).

given sin64.csc64

we can write cscx = 1/sinx

so sin64.csc64 = sin64.(1/sin64)

=sin64/sin64

=1

so sin64.csc64 =1

3).

let the angle of elevation is \'x\'

then tanx = height of tower / shawdow length

tanx = 107/112

tanx = 0.955

x = arc tan(0.955)

x= 43.7 degree

x=44 degree (approximately)