Answer:
25x10^18/4 or 6.25x10^18
Step-by-step explanation:
2.5x10^33x5x10^-15/2
12.5x10^18/2
Answer: the hundreds place
Cross multiplying:-
cot^2 x = (csc x+ 1)(csc x + 1)
also cot^2 x = csc^2 x - 1 = (csc x + 1)(csc x - 1) (Known Identitiy)
so the equation is not an identity