Question

find the maximum value of a if a =1 - cos x​

Answer 1

We need to know that Cosx has a range from -1 to 1.

That means, Cosx takes a minimum value of -1 and a maximum of 1

a = 1-cosx

we need to find maximum value of a

If cosx takes value 1, a = 0

But if cosx takes value -1, we get a = 2

Hence 2 is the maximum value of a

HOPE THIS HELPS!!

Answer 2

Answer:

2

Step-by-step explanation:

The value of cosx always lies between -1 and 1.

That is :. -1<=cosx <=1

Let us take some 't'.

(1-t) will be maximum when t will be minimum. That is the expression (1-t) become larger as t becomes smaller

Here the minimum value of cosx= -1

So maximum of (1-cosx) is given by,

1-(-1) = 1+1=2