Question: Question 4 Simplify cos-1 (cos x) if 0 x ?. Ob.x ol. e.-x Question 5 Find the identical expression for the following 1 + cscx

Question 4 Simplify cos-1 (cos x) if 0 x ?. Ob.x ol. e.-x Question 5 Find the identical expression for the following 1 + cscx a. cosx-1 COSX + O b. 1 .1-COSX I+ COSX d. sinx1 sinx + 1 sinx 1 +

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