JEE Main2002MathematicsSequences and SeriesActual
Fifth term of a GP is 2, then the product of its 9 terms is
Options
- A256
- B512
- C1024
- Dnone of these
Correct answer
B. 512
Step-by-step solution
ar ^4=2 a ar ar ^2 a r^3 ar ^4 ar ^5 a r^6 a r^7 a r^8=a^9 r³⁶= ( ar ^4 )^9=2^9=512