Find the product (3coty+1)(cot y-2)
The product of (3coty+1)(cot y-2) is:
3cot^2 y - 6cot y + cot y - 2.
-6 + 1 = -5
so
3 cot^2 y - 5 cot y - 2
Apologies for the mistake in the previous response. You are correct. The correct product of (3coty+1)(cot y-2) is:
3 cot^2 y - 5 cot y - 2.