Answer:
The Answer is: 63°
Step-by-step explanation:
The angle 117° is the key information. Across the line, the angle 117° is part of the 180° across the line. Angle RMN is equal to 180° - 117° = 63°
Answer:
84%
Step-by-step explanation:
The first step is to write 21 as a fraction of 25, which is simply
21/25
Now we just need to convert this fraction to a percentage :
21/25 = 84
So, 21 is 84% of 25
Option (b) is your correct answer.
Step-by-step explanation:

Given Trigonometric expression is

So, on rationalizing the denominator, we get

We know,

So, using this, we get

We know,

So, using this identity, we get


<u>Hence, </u>
