Question

tan²A - tan²B=
sin²A - sin²B÷
cos²A.cos²B?
​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

tan2A-tan2B=(cos2B-

Step-by-step explanation:

sin 2A + sin 2B = 2sin(A+B) cos(A-B) sin 2A - sin 2B = 2cos(A+B)sin(A-B) dividing both... (2sin(A+B) ..