Question

The function f(x) = cos x - 2px is monotonically decreasing for
(a) PS (b) p 2 (c) p S2 (d) p 2
2​

Answer 1

Answer:

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Answer 2

Answer:

f(x)=cosx−2px

For monotonically decrea\sin g

f

′

(x)<0

−sinx−2p<0

sinx+2p>

Now sinxϵ[−1,1]

Hence

1+2p>0

p>

2

−1

and

−1+2p>0

p>

2

1

.

Step-by-step explanation:

Ayush's