(Grade 11 Trigonometry)  Determine the exact value of each expression, show your work. a) tan 330 x cos 240 - 2 cos 270  b) tan 60 x 3 sin 90 - sin 315 c) Determine the exact value of sec 210 x cot 300 + sin 225

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A: Important points: 1. Sum of all interior angle of a triangle = 180o 2.  Law of Sines:   a/sinA = b/s...

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A: Compare it with :     

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A: To determine the radius of the circle.  

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Q: Perform the indicated operation, given. u3 and v= . %3= 4(u+2v)+ 3(v-2u)

A: Given vectors are Firstly, we will find vectors u+2v and v-2u

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Q: cos(-pi/12)

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Q: The problem refers to triangle ABC. If A = 6°, C = 135°, and c = 510 yd, find a. (Round your answer ...

A: Diagrammatic representation is,

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Q: Find the missing angles. Round to the nearest tenth of a foot and nearest degree, draw a triangle fo...

A: We will use the Cosine Law of Traingles which states that for any triangle with angles A,B,C and sid...

Q: Show correct answer from the multiple choice options.

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Q: Find all solutions to the following triangle. (Round your answers to one decimal place. If either tr...

A: Consider the triangle ABC, Use the sine rule and find unknown angles and sides.  

Q: Express as a trigonometric function of one angle. cos 48° cos 22° + sin 48° sin 22°

A: We will use cosAcosB+sinAsinB= cos(A-B) formula  With A= 48 and B= 22  

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A: For we consider this triangle: So,     

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Q: Use an inverse trigonometric function to write 0 as a function of x. a = x b = 10

A: From the given right angle triangle: base = b=10 hypotenuse = a =x

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A: To write the equation using rectangular coordinates.

Q: condense each expression to a single logarithm using the properties of logarithms.

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A: log8 (x) = 1/2

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Q: 36. Height of an Antenna Tower The angle of elevation from the top of a building 45.0 ft high to the...

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Q: Question # 36 Question # 50

A: Since you have submitted two questions, we'll answer the first question. For the second question ple...

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A: Formula Used: Use cosine rule:                              

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Q: 3. Two buildings are facing each other from opposite sides of the street. One building is 50 feet ta...

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