3 years ago

Pls helppp I’ll mark u brainliest

Mathematics

1 answer:

jasenka [17]3 years ago

5 0

Answer:

I believe the answer to this question is (4,1)

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A local restaurant offers a deal if you purchase 3 medium pizzas you get to side dishes for free if you get a total of 8 side di

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4 years ago

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B) (1 - cos B)(1 + cos B) =<br> 1/cosec^2(B)

faltersainse [42]

Answer:

Proved

Step-by-step explanation:

$(1-cosB)(1+cosB)=\frac{1}{cosec^2B} \\\\Use\\\\ (a+b)(a-b)=a^2-b^2 ,\\so,\\=(1)^2-(cosB)^2\\=1-cos^2B\\\\Now\ , we\ know\ \\sin^2B+cos^2B=1\\\\so,\\sin^2B=1-cos^2B\\so we just replace,\\\\=1-cos^2B=>sin^2B\\and\ since\ sinB=\frac{1}{cosecB} \\\\=sin^2B=>\frac{1}{cosec^2B}\\$

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4 years ago

How to solve 14x + 2 and 2(7x+1) x=5

Jobisdone [24]

14 x 5 = 70

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7 x 5 + 1 = 36

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They are equivalent

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