1. If cotQ = 7/8evaluate : (i)(1 + sin Q) (1 - sin Q)/(1 + cos 0) (1 -

1.	1. If cotQ = 7/8evaluate : (i)(1 + sin Q) (1 - sin Q)/(1 + cos 0) (1 - cos )(ii) cot2Q
Answer» Answer: (i)49/64 , II) 7/4 Step-by-step EXPLANATION: (i) =(1-sin²Q)/(1-cos²Q) = cos²Q /sin²Q =cot²Q given = COT Q = 7/8 =cot²Q=(7/8)² =49/64 ii) cot 2Q = 2×7/8 =7/4

1. If cotQ = 7/8evaluate : (i)(1 + sin Q) (1 - sin Q)/(1 + cos 0) (1 - cos )(ii) cot2Q

Answer»

Answer:

(i)49/64 , II) 7/4

Step-by-step EXPLANATION:

(i) =(1-sin²Q)/(1-cos²Q)

= cos²Q /sin²Q

=cot²Q

given = COT Q = 7/8

=cot²Q=(7/8)²

=49/64

ii) cot 2Q = 2×7/8 =7/4

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1. If cotQ = 7/8evaluate : (i)(1 + sin Q) (1 - sin Q)/(1 + cos 0) (1 - cos )(ii) cot2Q​

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1. If cotQ = 7/8evaluate : (i)(1 + sin Q) (1 - sin Q)/(1 + cos 0) (1 - cos )(ii) cot2Q