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3 years ago

Which function has zeroes at npi/2, where n is an odd integer. Select two of the following that apply.

Mathematics

2 answers:

ICE Princess25 [194]3 years ago

6 0

Answer:

A, B

Step-by-step explanation:

Andrews [41]3 years ago

4 0

Answer:

$y=cosx$

$y=cotx$

Step-by-step explanation:

The trigonometric function;

$y=\cos(x)$ has zeroes at $\frac{n\pi}{2}$ where $n$ is an odd integer.

The trigonometric function; $y=cot x=\frac{cosx}{sinx}$ . This also has zeroes at $\frac{n\pi}{2}$ where $n$ is an odd integer.

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Katen [24]

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3 years ago

Read 2 more answers

4x4=(blank)+(blank)=blank

kari74 [83]

Answer:

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3 years ago

When jeremy gets his allowance he agrees to save part of it his savings and expenses are in the ratio of 7:5 if his daily allowa

nignag [31]

He saves $ 1.75 each day from his allowance.

<u><em>Explanation</em></u>

The ratio of his savings and expenses is 7 : 5

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$7x+5x=3\\ \\ 12x=3\\ \\ x=\frac{3}{12}= \frac{1}{4}= 0.25$

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8 0

3 years ago

Simplify ( 8∙4∙2 8∙7 )^2 × ( 8 0 7−3 )^3 × 7 −9 .

stich3 [128]

$\bf ~\hspace{7em}\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
~\hspace{4.5em}
a^n\implies \cfrac{1}{a^{-n}}
~\hspace{4.5em}
\cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\left( \cfrac{8\cdot 4\cdot 2}{8\cdot 7} \right)^2\times \left( \cfrac{8^0}{7^{-3}} \right)^3\times 7^{-9}\implies \left( \cfrac{8\cdot 8}{8\cdot 7} \right)^2\times \left( \cfrac{1\cdot 7^3}{1} \right)^3\times \cfrac{1}{7^9}$

$\bf \left( \cfrac{8}{8}\cdot \cfrac{8}{7} \right)^2\times (7^3)^3\times \cfrac{1}{7^9}\implies \left( \cfrac{8}{7} \right)^2\times 7^{3\cdot 3}\times \cfrac{1}{7^9}\implies \cfrac{8^2}{7^2}\times \cfrac{7^9}{7^9}
\\\\\\
\cfrac{8^2}{7^2}\implies \cfrac{64}{49}$