3 years ago

Which expression is equivalent to -3/4(2/3+5/6)

Mathematics

1 answer:

Luba_88 [7]3 years ago

8 0

-.75(.66+1.2) is equivalent to -3/4(2/3+5/6) and your answer would be -1.395

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Cscθ - sinθ = _____

galina1969 [7]

So you maybe know that $\csc x = \frac{1}{\sin x}$ . Now let us try to simplify the expression

$\csc x - \sin x = \frac{1}{\sin x} - \sin x = \frac{1}{\sin x} - \frac{\sin^2 x }{\sin x}=\frac{1-\sin^2 x}{\sin x} =$

$= \frac{\cos^2 x}{\sin x} = \cot x \cdot \cos x$

4 0

3 years ago

Yo I’m timed so real quick what is the value of (-1/2) to the -4th power.

yuradex [85]

Step-by-step explanation:

Just expand it:

$-\frac{1}{2} *-\frac{1}{2}*-\frac{1}{2}*-\frac{1}{2}=\frac{1}{16}$