Book: RS Aggarwal - Mathematics
Chapter: 4. Inverse Trigonometric Functions
Subject: Maths - Class 12th
Q. No. 7 D of Exercise 4C
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7 D
Prove that:
To Prove: 
Formula Used: 
Proof:
LHS 
… (1)
Let 
Therefore 
… (2)
From the figure, 
… (3)
From (2) and (3),
Substituting in (1), we get
LHS 
Chapter Exercises
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1 A
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1 B
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3 A
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3 B
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3 C
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3 D
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4 A
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4 B
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4 C
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4 D
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5 A
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5 B
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6 A
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6 B
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6 C
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6 D
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6 E
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6 F
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6 G
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6 H
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7 A
Prove that:
7 B
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7 C
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7 D
Prove that:
7 E
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7 F
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7 G
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8 A
Solve for x:
8 B
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8 C
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8 D
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8 E
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9 A
Solve for x :
9 B
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9 C
Solve for x :
