1 year ago

A=sina-cosa B=sina+cosa proved A+1/B-1=1+sina/cosa

Mathematics

1 answer:

MA_775_DIABLO [31]1 year ago

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Answer:

See below

Step-by-step explanation:

It is NOT a RIGHT triangle so you <u>cannot use</u> 1/2 b * h

but you can use Heron's Formula

Area = sqrt( s (s-a)(s-b)(s-c) )

s = semi- perimeter = (3+6+7)/2 = 8

Area = sqrt ( 8 ( 8-3)(8-6)(8-7) ) = sqrt ( 80) = 8.9 cm^2

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3 years ago

I have to add then put the answer in simplest form and the fraction is 5/8 plus 3/10

tamaranim1 [39]

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37/40

Step-by-step explanation:

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3 years ago

Pythagorean theorem a=7 and c=14. Can you explain how to find b?

nikdorinn [45]

Answer:

c squared - a squared = b squared

Step-by-step explanation:

Since a squared + b squared = c squared

With these values it would equal 14 squared - 7 squared = c squared

Then after you find c squared, find the square root of it and there you have go your answer!

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3 years ago

If x/5 +6=-14,then x=

Otrada [13]

Answer: x= -100

Step-by-step explanation:

X/5=-14-6

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X=-100

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2 years ago

Read 2 more answers