What is the minimum value of cos x cos 2x?
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What is the minimum value of cos x cos 2x?
Originally Answered: What is the mininum value of cosx +cos2x for all values of x? d/dx(cos2x + cosx)=0 at boundary points. => x2 minimum.
What are the extreme values of cos 2x cos Square X?
As X tends to be pi or zero the value of Cos X tends to be (-1) or simply 1, both of whose square values are 1. Here when you substitute (n×180) the answer changes between (-1) and 1. But when they are squared the answer become 1. Thus the maximum value of Cos 2X + Cos^2 X is 1+1 = 2.
What is the minimum value of cos cos X?
Cos is a function on variable x. The value of c can be anything ranging from minus infinity to plus infinity. As the range of cos is [-1, 1] so it will give the answer between 1 and -1. So the minimum value of cosx is -1.
What will be the value of x for which the value of cos x is minimum?
So at x=0 we will get the minimum value of \[\cos (\cos x)\]. Substitute the value of ‘x’ in the function.
What is the minimum value of cos 2x?
Minimum value is 4-√10 and maximum value is 4+√10. Explanation follows on the hand note below.
What is the minimum value of cos 2 theta?
Min-Max table
| Min value | Max value | |
|---|---|---|
| cos θ, cos 4θ , cos 7θ … cos nθ | -1 | +1 |
| sin2 θ , sin2 4θ , sin2 9θ …sin2 nθ | 0 | +1 |
| cos2 θ , cos2 3θ , cos2 8θ … cos2 nθ | ||
| Sin θ Cos θ | -1/2 | +1/2 |
What is minimum value of cos A?
–1
Properties Of The Cosine Graph cos θ = 0 when θ = 90 ˚ , 270˚ . Maximum value of cos θ is 1 when θ = 0 ˚, 360˚. Minimum value of cos θ is –1 when θ = 180 ˚.
What is the minimum value of cos?
The cosine function ranges from -1 to 1, therefore the minimum is -1 and the maximum is 1.