O 4. If 270° < 0 < 360° and cos=, find sin 20. 12√/85 121 O-6√/85 121 O 6√85 121 O-12√/85 121

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Q: Which of the following is an equivalent expression to sin - (sin )(cos²0)? O cos²e O cos³e O sin²e O…

A: Given expression      sin(θ)-(sin(θ))(cos2(θ)) Here we use the following identity:…

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A: Topic = Trigonometry

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A: To find the value of

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A: We have to find the angle

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Q: If sin A = -3/5 and cos A > 0 and cos B = 5/13 and sin B < 0, evaluate tan (A+ B ). O -63/16 O…

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Q: Use the product-to-sum identities to rewrite the following expression. sin 16° sin 8° ..... Choose…

A: According to question given:sin(16°) sin8°We have to solve the given expression.

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A: We have to find all six trig function of theta.

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A: Given query is to find the value of the indicated function.

Q: 2. If 0° < 0 < 90° and cos 0 = 3, find sin 20. O O O O 3√/55 64 √55 64 √55 32 3√/55 32

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Q: Calculate 96√3 sin π πT π π πT COS COS COS COS 48 48 24 12 6

A: 96√3sin(π/48)cos(π/48)cos(π/24)cos(π/12)cos(π/6)

Q: Find 21 - 22, if 21 2 (cos 120° + i sin 120°) 22 = 5 (cos 30° + i sin 30°) O-5√3+5i O 5√3-5i O 10…

A: z1=2(cos120°+isin120°)z2=5(cos30°+isin30°)we know  i.i=-1