Hi, could you help me with this homework question Given cosa= -55/73 , π/2 ≤ a ≤ π, tanb = 63/16, π≤b≤3π/2, determine the exact value of cos(a-b). Show your work including a labelled diagram. You must only use exact values.

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A: To find it we will use formula Cos(x/2) = √[{1+cos(x)}/2].

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Q: a =b +c?-2bcCosA b2 =a +c?-2acCosB c = a+b-2abCosC 10. a = 15 b= 13 m2C = 25° >B mLA= mLB D C=

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Q: 4.) Solve the equation for the answer over the interval [0°, 360°) csc(x – }) = 2 3 CS

A: →Change csc into sin using cscθ = 1sinθ,  because equation in terms of sin is easy to solve.→To chan...

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Limits

When it comes to calculus, limits are considered to be a very important topic of discussion. The main importance of limit lies in expressing the value of a function as it gets closer to a certain value. Also, limits can help you to understand other topics, such as continuity and differentiability better. In a broader sense, every calculus notion is a limit. Other branches of calculus have also been derived from limits.