Answer:
22
Step-by-step explanation:
QS =2×11 = 22
__________
Answer:
Before solving the given trigonometric relation change everything to sines and cosines
Step-by-step explanation:
consider the given equation;
=
Multiplying the above equation on both sides by
then we get,

By using identity,
expand above equation we will get,

Then,


So the required value of the angle is
degree.
Right triangle
so
n + n + 40 = 90
2n = 50
n = 25
answer
Measure of angle n = 25°