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3 years ago

(1 - cos ß)(1 + cos ß) =1/cosec^2(ß)

Mathematics

1 answer:

iVinArrow [24]3 years ago

5 0

Step-by-step explanation:

L.H.S=(1-cosB)(1+cosB)

=(1-cos^2B). {using (a+b) (a-b)=(a^2-b^2)in second step}

=sin^2B

=1/cosec^2B

Therefore,L.H.S=R.H.S proved

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Divide 132kg in a ratio of 3:3:5

skad [1K]

You have to add 3+3+5.
It equals 11.
Then divide 132 by 11.
It equals 12.
Then you have to put it into the ratio, so you multiply each number by 12.
So the ratio is 36:36:60

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4 years ago

The Difference of 9 and y is greater than or equal to 14

Viktor [21]

Answer:

$9 - y \geqslant 14$

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3 years ago

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Oksanka [162]

Answer:

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3 years ago

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PLZ ANSWER If the graph of the equation y=(x+2)^2 is reflected with respect to the y-axis, what is the equation of the resulting

Anni [7]

Answer:

reflected function = (2-x)^2

Step-by-step explanation:

You have the following function:

$f(x)=(x+2)^2$

In order to find the function that is a reflection of f(x), you take into account that a reflection over the y-axis generates a function that is equal to f(-x).

Then, you have:

$f(-x)=(-x+2)^2=(2-x)^2$

The reflected function is then (2-x)^2

6 0

4 years ago

Solve for x.<br> x-2/4 - x+3/3 = -2

exis [7]

The LCD is 12. Thus, your

(x-2)/4 - (x+3)/3 = -2 becomes 12((x-2)/4 - (x+3)/3 = -2), or

3(x-2) - 4(x+3) = -36

Then 3x - 6 - 4x - 12 = -36. Combining like terms,

-x = -36 + 18, or -x = -18, or x = 18.

Check this result by subbing 18 for x in the given equation.

Please note: You must use parentheses here as indicated to eliminate any ambiguity about order of operations and what divides into what.

7 0

4 years ago