Perform the indicated operation. Reduce to Rectangular Form 1.1 [2 (cos 25 + i sin 25)] * [5(cos 75 + i sin 75)] 1.2 [8(cos 18 +i sin 18)] * [6(cos 24 + i sin 24)] 1.3 [15(cos 140 +i sin 140)] * [4(cos 280 + i sin 280)]

Q: Which expression is equal to cos(6t)?

A: Recall:  cos(2t)=cos2(t)-sin2(t)     Given,   cos(6t)

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A: Hey, since there are multiple questions posted, we will answer the first question. If you want any…

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A:

Q: sin 6r Use the half-angle formulas to simplify the expression, 1+cos 6x sin23x + tan3x tan12x 1-…

A: Using half angle formula's.

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A:

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Q: 9. Determine the correct simplification of the expression (1 + cose)(1- cose).

A: SOLUTION-

Q: Find the exact value of 23л sin 30 17 237 17 COS + cos sin 30 30 30

A: Let's find.

Q: Use the fact that sin (38) 0.6157 to complete the expression. 22 cos() 0.6157

A: We have to use the fact  sin(38°) ≈ 0.6157 to complete the expression  cos(.... °) ≈ 0.6157

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Q: Go to your book on Section 5.2 problem set page 309 problem number 44. Find the exact answer for cos…

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Q: Show sin 3A = 3 sin A cos²A - sin A.

A: Explanation: Given that: sin3A=3sinAcos2A-sinA Concept: sin3A=3sinA-4sin3A sin2A+cos2A=1

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Q: Calculate tg/tan of 32 knowing that cos64= 0,44.

A: Given that

Q: 15. Evaluate [sin50 cos²0de. COS

A: