Question

plzz can any one help in learning trigonometry-compound angles
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Answer 1

Answer:

✨ Trigonometric Ratios of Compound Angles

• sin(A + B) = sinA cosB + coA sinB.
• sin(A – B) = sinA cosB – cosA sinB.
• cos(A + B) = cosA cosB – sinA sinB.
• cos(A – B) = cosA cosB + sinA sinB.
• tan(A + B) = tanA + tan B/ 1 - tan A tanB.
• tan(A – B) = tanA - tan B/ 1 + tan A tan B.
• sin(A + B) sin(A – B) = sin2A – sin2B = cos2B – cos2A.
• cos(A + B) = cos(A – B)

Answer 2

Answer:

u can only help your self....

Step-by-step explanation:

but i can explain u about it...

listen first time ever have to ride numbers 12 34 and then divide then by four then and you will have the angles then cos is opposite of sin and tan is sin oppon cos by this u can understand these..

may it will help you...

plz mark me as Brainliest....

plzzzz" ...