Use the product-to-sum formulas to rewrite the product as a sum or difference. cos 20 cos 40 Need Help? X Read It DETAILS X Watch It Use the product-to-sum formulas to rewrite the product as a sum or difference. sin(x + y) cos(x - y) Need Help? Read It PREVIOUS ANSWERS Watch It

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Q: 2. Find the gradient of the following functions a. F=x²sin(5y) b. F = x¹yz c. F=x³exy + ²x

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Q: 1. Find the general solution of: du dx _ _ y + xy² + x³ x+x²y+y² dy

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Q: Given the functions f(x)= x^2 -2x+1 and g(x) =5x-4 determine:       (a) g(4) -g(3).   (b) f{g(2)}

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Q: An aircraft is flying at 320 km/hr on a bearing of 70°. The wind is blowing at 40 km/hr from a…

A: An aircraft is flying at 320 km/hr on a bearing of 70°. The wind is blowing at 40 km/hr from a…

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A: We have to find the volume of solid.

Q: 16. Find the exact value of: π a) sin¹(tan(- =)) 3 √₂ 2 b) sin(cos-1(-

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Q: (c) (i) Show that the equation (3x²y²-10xy²)dx + (2x³y-10x²y)dy = 0 is an exact equation. (ii) Then,…

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A: Given: yx2-9=1

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Q: 9. Prove: csc(x)-csc(x)cos² (x) = sin(x)

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A: Given   Height of Mount Everest =  29029 foot

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Q: 1 2. S- 9y²+64 dy

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Q: Consider the following equation. 6² - x = 36 Find any Intercepts. x-Intercept (x, y) = (…

A: Given equation of curve:- 6y2-x=36  Find:- X intercepts, y intercepts, symmetry and graph of curve