Question

1) cot²A - cosec²A is equal to (a) – 1 b)1 (c) 2 (d) 0

Answer 1

Answer:

b

Step-by-step explanation:

1 + cot2A:cosec2A

1:cot2A+cosec2A

Answer 2

Step-by-step explanation:

❤ Cot²A - Cosec²A = 1

$\sf\fbox\purple{~Cosec²A~-1~=~Cot²A~}$ ===> Eqn ①

→ Cot²A - Cosec²A

→ Cosec²A - 1 - Cosec²A

• Cancel +Cosec²A & -Cosec²A

→ -1

• (a) -1 ✅