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3 years ago

What is 25/2 in simplest form?

Mathematics

2 answers:

kifflom [539]3 years ago

7 0

It's already in simplest form BUT it is 12.5 in decimal form. ( < If your doing it in decimal form the answer is there)

AysviL [449]3 years ago

5 0

Well the answer would be 12.5. I hoped that this helped. :)

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Step-by-step explanation:

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3 years ago

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3 years ago

Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

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2 years ago