Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NDA2021MathematicsTrigonometric Ratios & IdentitiesActual

If A= 1 7 , then what is 2 A equal to?

Options

  1. A24 25
  2. B18 25
  3. C12 25
  4. D6 25

Correct answer

A. 24 25

Step-by-step solution

A= 1 7 , 2 A= 1- ^2 A 1+ ^2 A = 1- ( 1 7 )^2 1+ ( 1 7 )^2 = 24 25

Practice Trigonometric Ratios & Identities on Quantrex Academy →

More from Trigonometric Ratios & Identities

If lies in the fourth quadrant and 3 +4=0 , then what is the value of 2 + 2 ? 2026If + =0= + , then what is a value of 2 + 2 +2 ( + ) ? 2026If 2 4 = 2 + 2 , then which one of the following is a possible value of ( + ) ? 2026If x= - and y= + , then which one of the following is correct ? 2026If = 1 3 , then what is the value of ( 2 ) ( 3 2 ) ? 2026If A and B are acute angles such that 2A+2B= , then what is the maximum value of A B ? 2026x+ 3 x is maximum when x is equal to 2026In a triangle ABC , A= B+ C then what is ( B 2 )+ ( B 2 ) equal to ? 2026 Full Trigonometric Ratios & Identities list All NDA PYQs