NDA2021MathematicsTrigonometric Ratios & IdentitiesActual
What is the value of the following? cosec ( 7 6 ) ( 5 3 )
Options
- A4 3
- B4
- C-4
- D- 4 3
Correct answer
C. -4
Step-by-step solution
cosec ( 7 6 ) ( 5 3 ) aligned & = cosec ( + 6 ) (2 - 3 ) & =- cosec 6 3 =(-2)(2)=-4 aligned