So my brother is seriously struggling with these every day and he is really sad right now it would mean a lot to me if you'd answer these 2 questions :) 1. csc2(x) - 2csc(x)cot(x) + cot2(x) = tan2 (x/2)

2. [cos cos (x) cos(y)] [tan tan (x) + tan tan(y)] = sin(x + y)

( 1 + cos x ) + ( 1 − cos x ) ( 1 − cos x ) ( 1 + cos x  1 + cos x + 1 − cos x 1 − cos 2 x  2 sin 2 x  2 csc 2 x

Step-by-step explanation:

q: 92 degrees

hope i ^-^

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions