Answer to Question #117765 in Trigonometry for Abdul Adil

Question #117765

Find the value of following 1. 4cot45O – sec60O +sin30O

Expert's answer

1. 4cot45°- sec60° +sin30°

4cot45°=4×1=4;

sec 60°=1/cos 60°=1/0.5=2;

sin 30°= 1/2;

4cot45°- sec60° +sin30°= 4-2+1/2=2+1/2=5/2=2.5

Answer: 4cot45°- sec60° +sin30°= 5/2

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