Answer:
The value of is:
Step-by-step explanation:
We are given an angle "Theta" or θ which lie in the first quadrant i.e. 0°≤θ≤90°
Also we are given cosine of angle theta as:
Now we are asked to find the value of:
We know that:
( Since, the conversion of the angle 90-θ will remain in the same first quadrant
since, 0°≤θ≤90°
-90°≤-θ≤0°
90°-90°≤90°-θ≤90°
Hence, 0°≤90°-θ≤90°
and as both cosine and sine function are positive in the first quadrant,
so, the conversion gives:
)
Hence, the value of: