Use the information given below to find cos (a+B). 4 with a in quadrant I 3 tan a = 3 sinß = with B in quadrant II 5 Give the exact answer, not a decimal approximation. cos (a + B) = 0

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A: If you like the solution then please give it a thumbs up... The Answer is:        Result  = 1…

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A: To solve this question, We will use the formula -  tan (x+y) = tanx + tany/ 1- tanx.tany

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A: Taking We approximate

Q: Use the information given below to find cos (a-B). with a in quadrant III 12 tan a= 3 cos B=- with B…

A: Given,          tanα=512 , with α in quadrant III.          cosβ=35 with β in quadrant IV.

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Q: Use the information given below to find tan (a+B). 5 with a in quadrant IV 13 cos a = 12 sin : with…

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Q: c. At what time does each vibration first reach a displacement of –2mm? d. Use the compound angle…

A: 1) x1=3.75sin100πt+2π9     x1=3.75(sin100πtcos2π9+cos100πtsin2π9)     x1=Asin100πt+Bcos100πt…

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A: =&gt;Tan (A+B) = tan A + tan B/ 1 - tan A.tanB

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A: We have cosα+β=cos α cos β - sin α sin β tan α=-43⇒cot α=-34⇒cosec  α=1+cot 2α=1+916=2516=±54sin…

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Q: Use the information given below to find tan (a+ß). 5 with a in quadrant IV 13 cos a= 12 sinß= with B…

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A: Given that cosx = 8/17 and cscy= 29/21. Now find sin(x+y) and tan(x+y). Here i attached solution of…