Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202014 Oct 2020Evening ShiftMathematicsTrigonometric Ratios & IdentitiesActual

If + =a and - =b , then the values of and cosec are respectively

Options

  1. A1 a+b , 1 a-b
  2. B2 a+b , 2 a-b
  3. C2 a-b , 2 a+b
  4. D1 a-b , 1 a+b

Correct answer

B. 2 a+b , 2 a-b

Step-by-step solution

We have + =a (1) and - =b (2) Adding equation (1) & (2), we get 2 =a+b = a+b 2 = 2 a+b By equation (1) - equation (2), we get 2 =a-b = a-b 2 cosec = 2 a-b

Practice Trigonometric Ratios & Identities on Quantrex Academy →

More from Trigonometric Ratios & Identities

If x+ x= 1 2 and 0 < x < , then x= 2025If A and B are acute angles satisfying 3 ^2 A+2 ^2 B=4 and 3 A B = 2 B A , then A+2 B= 2025In a ABC , if ^2 ~B = A and 2 ^2 ~A =3 ^2 ~B , then the triangle is 202512 2 12 3 12 4 12 5 12 6 12 = 2025If ( 4 + )= ^3 ( 4 + ) , then ( + ) ( - )= 2025If A+B+C+D=2 , then A+ B+ C+ D= 2025(4 ^2 20 -1 ) (4 ^2 3 20 -1 ) (4 ^2 5 20 +1 ) (4 ^2 7 20 -1 ) (4 ^2 9 20 -1 )= 2025If A and B are the values such that (A+B) and (A-B) are not odd multiples of 2 and 2 (A+B)=3 (A-B) , then A A= 2025 Full Trigonometric Ratios & Identities list All MHT CET PYQs