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3 years ago

Find the sum 52,679 + 3,596

Mathematics

1 answer:

mojhsa [17]3 years ago

6 0

Answer:

56,275

Step-by-step explanation:

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Find f(-5) if f(n) = n3 + 3n2 A) -50 B) -7 C) 0 D) 22

natta225 [31]

$f(-5) = (-5)^{3} + 3(-5)^{2}$
$f(-5) = -125 + 3(25)$
$f(-5) = -125 + 75$
$= -50$

4 0

3 years ago

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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

3 years ago

2x+7 is on the outside and 2x^4+21x^3+35x^2-37x+46 is inside the division sign. please help!! ...?

MrRissso [65]

We carry out long division:

First, we multiply 2x + 7 by x³ to obtain 2x⁴ + 7x³ and subtract this from the original to get the remainder:
14x³ + 35x² - 37x + 46
Now, we repeat this process and keep the numbers we multiply by and then add them in the end:
Multiply by 7x², remainder:
28x² - 37x + 46
Multiply by 14x, remainder:
-135x + 46
Multiply by -67.5, remainder:
326.5

The answer is x³ + 7x² + 14x - 67.5 with a remainder of 326.5

6 0

3 years ago

Can someone please help me?

MAXImum [283]

Stop if u not going to ask a real question dont

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3 years ago

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Simplify. 32 478 016 0 16V2 4v2

erica [24]

Answer:

Step-by-step explanation:

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3 years ago