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3 years ago

6

PLEASE I NEED HELP URGENT I Will MARKE YOU BRAIN LIST

1 answer:

user100 [1]3 years ago

3 0

Answer:

1. 0

2. a/ a + b

3. a + b/ a - b

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Proove that <br>1/1-sin theta + 1/1+cos theta = 2×sec square theta

Rina8888 [55]

Step-by-step explanation:

We need to prove that,

$\dfrac{1}{1-\sin\theta}+\dfrac{1}{1+\sin\theta}=2\times \sec^2\theta$

Taking LHS,

$\dfrac{1}{1-\sin\theta}+\dfrac{1}{1+\sin\theta}\\\\=\dfrac{(1+\sin\theta)+(1-\sin\theta)}{(1-\sin\theta)(1+\sin\theta)}\\\\=\dfrac{2}{1-\sin^2\theta}\\\\\text{As}\ 1-\sin^2\theta=\cos^2\theta\\\\=\dfrac{2}{\cos^2\theta}\\\\\text{As}\ \dfrac{1}{\cos^2\theta}=\sec^2\theta\\\\=2\sec^2\theta\\\\=RHS$

Hence, LHS = RHS.

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3 years ago

Help me pls. I do not understand this 25 points

valina [46]

Answer:there is no picture

Step-by-step explanation:

5 0

3 years ago

How to convert this to a decimal

skad [1K]

Make it improper.
-4×25+4=96

96/25

make the bottom number 100
96× 4 25×4
384/100

simplify 3 and 84/100
3.84 is your answer

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3 years ago

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The sum of two numbers is 14. When one number is added to twice the other number, the result is 25. Find the numbers

ELEN [110]

Let x and y be the two numbers. We have:

$\begin{cases}x+y=14\\x+2y=25\end{cases}$

Subtract the first equation from the second to get

$y=11$

And deduce

$x+11=14 \iff x=3$

The two numbers are 3 and 11.

5 0

3 years ago

What is the quotient of -18 divided by [-1/6]

Sloan [31]

18?
-18 divided by [-1/6]
is 18
hopefully that's what you were looking for.?!!

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3 years ago

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