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2 years ago

7.

Mathematics

1 answer:

aivan3 [116]2 years ago

6 0

Answer:

non-linear: C, E, F

Step-by-step explanation:

Choices A, B, D are linear functions, so the rest are non-linear: C, E, F

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Sin(x)-tan(x)cos(x)+cos(π/2-x)

Gala2k [10]

Answer:

sin(x)

Step-by-step explanation:

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3 years ago

What is the value of×

sweet [91]

Is there supposed to be a picture??

But to answer ur question when ur referring to x your referring to 1 hope this helps

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3 years ago

Which points

SIZIF [17.4K]

Answer:

5, 6 and 9 , 10 so E and F.

Step-by-step explanation:

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2 years ago

Cos (90-theta) • cosec90-theta) =tano. How?

denis-greek [22]

Answer:

______________________________________________________

TRIGONOMETRY IDENTITIES TO BE USED IN THE QUESTION :-

For any right angled triangle with one angle α ,

$\cos (90 - \alpha ) = \sin \alpha$ or $\sin(90 - \alpha ) = \cos\alpha$

$cosec \: (90 - \alpha ) = \sec\alpha$ or $\sec(90 - \alpha ) = cosec\:\alpha$

SOME GENERAL TRIGNOMETRIC FORMULAS :-

$\sin \alpha = \frac{1}{cosec \: \alpha }$ or $cosec \: \alpha = \frac{1}{\sin \alpha }$

$\cos \alpha = \frac{1}{\sec \alpha }$ or $\sec \alpha = \frac{1}{\cos \alpha }$

______________________________________________________

Now , lets come to the question.

In a right angled triangle , let one angle be α (in place of theta) .

So , lets solve L.H.S.

$\cos (90 - \alpha ) \times cosec(90 - \alpha )$

$=> sin\alpha \times \sec\alpha$

$=> \sin\alpha \times \frac{1}{\cos\alpha }$

$=> \frac{\sin\alpha }{\cos\alpha }$

$=> \tan\alpha$ = R.H.S.

∴ L.H.S. = R.H.S. (Proved)

3 0

2 years ago

Why is the number 6 scared of the number 7?

Lady_Fox [76]

This is a well known joke:

Why six afraid of seven? Because seven ate nine!

It is supposed to be a "word game" where instead of writing eight, the authour wrote ate, which sound the same but means something different.

Hope it helped,

Happy homework/ study/ exam!

8 0

2 years ago

Read 2 more answers