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3 years ago

Please help me guys, I'll give brainliest Tysm !!

Mathematics

1 answer:

Yanka [14]3 years ago

3 0

Hello! :)

$\large\boxed{ =7^{8}}$

Use the exponential rule:

$a^{b} * a^{c} = a^{b + c}$

Use this property in this scenario:

$7^{2} * 7^{6} = 7^{2 + 6}$

Simplify:

$= 7^{8}$

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Answer:

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Step-by-step explanation:

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HELP <3 Match the expressions with their solutions.

densk [106]

Answer:

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Step-by-step explanation:

1 )

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Also we know that sin2x = 2sinxcosx

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Given expression is $\frac{1-cos 315}{2}$

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4 years ago

An arithmetic sequence has a common difference of 5 and the 3rd term is 15. What is the 5th term?

trapecia [35]

Answer:

an=8n−14

Step-by-step explanation:

for an AP

where

the first term

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then we have

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)

(

)

...

(

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)

we are given the third term

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)

and the fifth term

−

(

)

subtract

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)

−

(

)

⇒

sub into

(

)

⇒

−

so the nth term

(

−

)

will be

−

(

−

)

−

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