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• 1
4cos3A + 3cosA
Correct
Wrong
• 2
3cosA – 4cos3A
Correct
Wrong
• 3
cosA + 4cos3A
Correct
Wrong
• 4
4cos3A – 3cosA
Correct
Wrong
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## Answer : 4. "4cos3A – 3cosA"

• 1
(1 – sinA)/(1 + sinA)
Correct
Wrong
• 2
(1 – cosA)/(1 + cosA)
Correct
Wrong
• 3
(1 + cosA)/(1 – cosA)
Correct
Wrong
• 4
(1 + sinA)/(1 – sinA)
Correct
Wrong
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## Answer : 2. "(1 – cosA)/(1 + cosA)"

• 1
$${1\over\sqrt { 3} \ }$$
Correct
Wrong
• 2
$${1\over\sqrt { 6} \ }$$
Correct
Wrong
• 3
$${1\over\sqrt { 2} \ }$$
Correct
Wrong
• 4
$${2\over\sqrt { 3} \ }$$
Correct
Wrong
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• 1
Sin A
Correct
Wrong
• 2
Tan A
Correct
Wrong
• 3
Cot A
Correct
Wrong
• 4
Cosec A
Correct
Wrong
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• 1
1
Correct
Wrong
• 2
9
Correct
Wrong
• 3
3
Correct
Wrong
• 4
1/9
Correct
Wrong
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## Answer : 3. "3 "

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