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| PAGE: 481 | SET: Exercises | PROBLEM: 1 |
(a).
The expression is 
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Rewrite the above expression 
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From trigonometric functions 
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Rewrite the expression 
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Use the properties of inverse trigonometric function: 
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The exact value of expression 
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(b).
The expression is 
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From trigonometric functions 
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Rewrite the expression 
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Use the properties of inverse trigonometric function : 
.
The exact value of expression 
.
(a)The exact value of expression 
.
(b)The exact value of expression 
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