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JEE Mains 2022 Answer Key

JEE Main 2022 Answer Key Released by www.jeemain.nta.nic.in

The Joint Entrance Examination, JEE Main 2022 session 1 answer key has been released by the National Testing Agency, NTA today, on 6th July, 2022. The candidates, who had appeared for the JEE Main 2022 session 1 B.E/B.Tech examination, now can check their final keys on the official website - nta.nic.in and jeemain.nta.nic.in.
Earlier, on 2nd July, 2022, the National Testing Agency has also released the provisional answer keys along with the question paper. These provisional final answer keys have been released by the authorities so that the candidates can get an idea of scores they have received. Click here for download.

JEE Main 2021 Answer Key by Resonance Released - Download Paper 1 (Shift 1 & 2) Solutions

JEE Main 2021 Official Answer Key has been released on 1st March 2021. It is released separately for four session in – February, March, April, May sessions. JEE Main is conducted for providing admission into UG engineering/ architecture courses (B.Tech/ B.Arch). These courses are offered by the NITs, IITS & IIITs and other government and non-government engineering institutions. JEE Main exam is organized by the National Testing Agency (NTA).

JEE Main 2021 Answer Key


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Memory Based Answer Key (Paper 2A)

Q. 1: The minimum number of times a fair coin need to be tossed so that probability of getting at least two head is at least 0.96 is…?

Answer: 8

Q.2: Find the equation of normal to the curve x² = 4y which passes through the point (1,2)?

Answer: x+y=3

Q.3: If A+B+C=180° then find tanA+tanB+tanC=?

Answer: tanA tanB tanC

Q.4: Who was the designer of World Trade Center?

Answer: Minoru Yamasaki, Emery Roth

Q.5: Area of triangle formed by the complex number z, iz and z+iz is?

Answer: 1/2ΙzΙ²

Q.6: The DE representing the family of curve Y2 (2c+x2021) where c is the positive parameter is of?

Answer: Order 1

Q.7: If zand zunimodular complex number that satisfy z12 + z22 = 4 then (z1 + z1)(z2 + z2)is equal to?

Answer: 12

Q.8: Given x=cy+bx, y=az+cx, z=bx+ay, where x, y and z are not all zero then a² + b² + c² = 2ab is equal to?

Answer: 1

Q.9: Number of divisors of the form (4n+2), of the integer 240 is?

Answer: 20

Q.10: The locus of the midpoint of the chord of the circle x²+y=4 which substance a right angle at the origin is?

Answer: x²+y²=2

Q.11: The point on the curve Y2 + 3x= 12y, when the tangent is vertical, is (are)?

Q.12: If B and C are square matrix of order n, and if A=B+C and BC=CB and C²=0, then for any positive integer P, AP+1=Bk[B+(P+1)C]

Answer: P

Q.13: The area bounded by the curve y=√x. 2y+3 =x, and x-axis in the first quadrant is?

Answer: 9 sq units

Q.14: If f:(1,∞)–> (2,∞) is given by f(n)=n+1, the f-1(n) equals to?

Answer: x+√x2-4/2

Q.15: If 0< P(A) < 1, 0< P(B) < 1 and P (A⋃B) = P (A) + P(B) – P(A) P(B), then select the appropriate answer.

Answer: P(A/B) = P(A)

Q.16: If x > 1, y > 1, z > 1 are in GP, then 1 /1+lnx, 1 /1+lny, 1 /1+lnz are in _______

Answer: HP

Q.17: If z1 and z2 are two non-zero complex number such that |z1 + z2| = |z1| + |z2|, then argz1 – argz2 is equal to?

Answer: 0