<span>c)1 + 2cot^2x + 2cscx cotx
because cosc^2x=1+cot^2x</span>
9 + 5 + 4 + 7 = 25
Ratio = 5 : 25
Ratio = 1 : 5 <==== answer
Answer:
A) 7x^2-7x+15
Step-by-step explanation:
f(x) = 4x2 - 5x + 7,
g(x) = 3x2 - 2x + 8
f(x) +g(x) =
4x^2 - 5x + 7 + 3x^2 - 2x + 8=
7x^2-7x+15
The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>
