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Free_Kalibri [48]
3 years ago
5

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

<u>sin</u><u>(</u><u>A-B</u><u>)</u> = <u>sinAcosB-cosAsinB</u>

cos(A-B) cosAcosB+sinAsinB

divide by cos on the RHS

tan(A-B)= <u>tanA-tanB</u>

1+tanAtanB

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