Problem 5 Can T Forget Trigonometry Given That Csca 4 3 And T 2 Lt A Lt N Comput

I need help. Please show the step by step solution so that i could follow along. Thank you.
Problem 5. Can’t forget trigonometry! Given that csca = 4/3 and T/2 < a <n, compute exactly:A. cos(a)B. csc(2a)C. tan(T/2 – a)
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