## Sum and difference identities, Mathematics

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Q. Sum and Difference Identities?

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These six sum and difference identities express trigonometric functions of (u ± v) as functions of u and v alone. #### .fractions, what is the difference between North America''s part of the tot...

what is the difference between North America''s part of the total population and Africa''s part

#### Algebra, Manuel is a cross-country runner for his school’s team. He jogged ...

Manuel is a cross-country runner for his school’s team. He jogged along the perimeter of a rectangular field at his school. The track is a rectangle that has a length that is 3 tim

#### Dimensional analysis, Rachel had 3.25 quart of ice tea. her family drank 9 ...

Rachel had 3.25 quart of ice tea. her family drank 9 cups.How many cups are left

#### Continuous compounding, If r per annum is the rate at which the princ...

If r per annum is the rate at which the principal A is compounded annually, then at the end of k years, the money due is          Q = A (1 + r) k Suppose

(3+x)(3-x)

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#### Area of a hyperbolic wedge, The unit circle will be parametrized by (cosw, ...

The unit circle will be parametrized by (cosw, sinw). Provide a point on it, the region cut out by circle, the x-axis, and the line from the origin to this point has covered area w

#### Green function, greens function for x''''=0, x(1)=0, x''(0)+x''(1)=0 is G(t...

greens function for x''''=0, x(1)=0, x''(0)+x''(1)=0 is G(t,s)= {1-s for t or equal to s

limits

#### Economics, A mortgage lender seeks to maximize the expected value of its po...

A mortgage lender seeks to maximize the expected value of its portfolio. The portfolio, of course, is the sum of all of the mortgages in it, so no generality is lost by examining t  