The sum and difference identity cos(x + y) / sin(x - y) = 1 - cotxcoty / cotx - coty is verified
<u>Solution:</u>
Given expression is:
Let us first solve L.H.S
------ EQN 1
We have to use the sum and difference formulas
cos(A + B) = cosAcosB – sinAsinB
sin(A - B) = sinAcosB – cosAsinB
Applying this in eqn 1 we get,
Taking -1 as common from numerator and denominator we get,
= R.H.S
Thus L.H.S = R.H.S
Thus the given expression has been verified using sum and difference identity
Im gonna say that the answer is 38% but i may be wrong but its worth a shot
Answer:
C
Step-by-step explanation:
it supposed to shade the middle portion
Without it being in simplest terms the answer would be:
100:150
In simplest form it would be:
2:3
(I divided both sides by 50)
Hope this helps you!