WBJEE 2021 Math Solved Paper
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CATEGORY - I (Q:1 to Q50)
Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.
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Question : 39 of 75
Marks:
+1,
-0
For y = sin − 1 {
} ; | x | ≤ 1 , if a ( 1 − x 2 ) y 2 + b x y 1 = 0 then ( a , b ) =
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