Question

Q.1 Choose the correct
alternate

1. If sin 0 + cos 0 = m and sec 0 + cosec @ = n, then n(m + 1)
(m - 1) =
(A)m
(B) n
(C) 2m
(D) 2n

3. If cos x + cos²x = 1, then the value of sin2x + sin4x is
(A) 1
(B) - 1
(C) O
(D) 2.​

Answer 1

Answer:

the answer of first is M

Step-by-step explanation:

the the answer of third is zero

Answer 2

Step-by-step explanation:

first is m(A)

second is 2(D)