Help me number 4pls. Other Trigonometric FunctionsSin (A + B) = Sin A cos B + Sin B cos ASin (A- B) = Sin A Cos B - sinB cos Aios (A + B) = cos A Cos B - sin A Sin BCas (A-B) = cos A Cos B + sin A sin BSin 20 = 2 sin & Cas &Cos 24 = Ces* - Sin+Tan A + Tan BTun (A+ B) =|- Tan A Tan B2 TantTan 2+ =|- Tan' 4 IV. Find tan (A+B).3. If cos e = -5/13 and 0 terminates in the second quadrant, determine sin 20.4. Find the value of cos (A+B) for A terminating in quadrant III and B terminating in quadrant IVwhere sin A= -1/3 and cos B= 2/5.ANGLE OF ELEVATION AND ANGLE OF DEPRESSION.

Answered: Image /qna-images/answer/7dd9ecc6-ffdd-43af-b0be-22e1bab20495.jpg

Answered: 4. Find the value of cos (A+B) for A…

4. Find the value of cos (A+B) for A terminating in quadrant III and B terminating in quadrant IV where sin A= -1/3 and cos B= 2/5. GLE OF ELEVATION AND ANGLE OF DEPRESSION.

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter73: Achievement Review—section Seven

Section: Chapter Questions

Problem 11AR

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Question

Help me number 4pls.

Other Trigonometric Functions
Sin (A + B) = Sin A cos B + Sin B cos A
Sin (A- B) = Sin A Cos B - sinB cos A
ios (A + B) = cos A Cos B - sin A Sin B
Cas (A-B) = cos A Cos B + sin A sin B
Sin 20 = 2 sin & Cas &
Cos 24 = Ces* - Sin+
Tan A + Tan B
Tun (A+ B) =
|- Tan A Tan B
2 Tant
Tan 2+ =
|- Tan' 4

IV. Find tan (A+B).
3. If cos e = -5/13 and 0 terminates in the second quadrant, determine sin 20.
4. Find the value of cos (A+B) for A terminating in quadrant III and B terminating in quadrant IV
where sin A= -1/3 and cos B= 2/5.
ANGLE OF ELEVATION AND ANGLE OF DEPRESSION.

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