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3 years ago

Look at the picture below. What is tan(A – B)? Thanks!

Mathematics

1 answer:

Natalka [10]3 years ago

3 0

Step-by-step explanation:

the mistake was made when the value of cos 3 pi over 2 was calculated.

tan(A-B)= ?since tan=sin/cos

sin(A-B) = sinAcosB-cosAsinB

cos(A-B) cosAcosB+sinAsinB

divide by cos on the RHS

tan(A-B)= tanA-tanB

1+tanAtanB

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slega [8]

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3 years ago

Which ratio is equivalent to 4 to 5?

algol [13]

Answer:

4 / 5 = 8 / 10

Step-by-step explanation:

4:5 is a ratio which can be rewritten as 4/5.

Any number that is multiplied by both the 4 and the 5 is an equivalent ratio to 4:5.

For example, if we multiply 2 by both sides, we have 8 to 10 which is equal to 4 to 5.

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2 years ago

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Step-by-step explanation:

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2 years ago

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laiz [17]

Answer:

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Step-by-step explanation:

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I hope this helps!

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3 years ago

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DanielleElmas [232]

Answer:

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