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3 years ago

Just want a answer for this question

Mathematics

2 answers:

jeyben [28]3 years ago

7 0

Answer:

Probably +3

Step-by-step explanation: I’m not sure I have to go check

Shalnov [3]3 years ago

5 0

Answer:

Step-by-step explanation:

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Help math question derivative!

atroni [7]

Let $f(x)=\sec^{-1}x$ . Then $\sec f(x)=x$ , and differentiating both sides with respect to $x$ gives

$(\sec f(x))'=\sec f(x)\tan f(x)\,f'(x)=1$
$f'(x)=\dfrac1{\sec f(x)\tan f(x)}$

Now, when $x=\sqrt2$ , you get

$(\sec^{-1})'(\sqrt2)=f'(\sqrt2)=\dfrac1{\sec\left(\sec^{-1}\sqrt2\right)\tan\left(\sec^{-1}\sqrt2\right)}$

You have $\sec^{-1}\sqrt2=\dfrac\pi4$ , so $\sec\left(\sec^{-1}\sqrt2\right)=\sqrt2$ and $\tan\left(\sec^{-1}\sqrt2\right)=1$ . So $(\sec^{-1})'(\sqrt2)=\dfrac1{\sqrt2\times1}=\dfrac1{\sqrt2}$

5 0

3 years ago

Elapsed time was 9 hours and 45 min that ended at 6:00 what was the starting time

LiRa [457]

8:15 is the answer assuming the clock is at PM.

6 0

3 years ago

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How do you add and subtract intergers.

DaniilM [7]

Answer:

Add a positive integer by moving to the right on the number line.

Subtract an integer by adding its opposite.

Step-by-step explanation:

8 0

3 years ago

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How times can 38 go into 7

kaheart [24]

Hmm, this answer is mathematically incorrect. If the question has no errors, 38 can go into 7 0 times, it can't because its bigger than 7.

However, if it were meant to be the other way round, how many times does 7 go into 38, the answer would be 5.

6 0

3 years ago

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The sum of two numbers is 981. One of the numbers is 703. What is the other number?

victus00 [196]

Answer:

Other number is 278.

Step-by-step explanation:

Given that

a + b = 981

One of the numbers = 703

We assume that it is a ; So

a = 703

Other number = b = ?

Put value of a in a + b

a + b = 981

703 + b = 981

b = 278

6 0

4 years ago