Mathematics
Assertion (A): If C is mid-point of BD, tan ∠DAB : tan ∠CAB = 2 : 1 Reason (R): tan∠DAB/tan∠CAB = BD/AB/BC/AB = BD/BC = 2 x BC/BC = 2/1 1. A is true, R is false. 2. A is false, R is true. 3. Both A and R are true. 4. Both A and R are false.
Related Questions
Assertion (A): The internal area of cross-section of a pipe is 21 cm2. Water runs through this pipe at a speed of 5 km/h. The volume of water that runs through the pipe in 2 minutes = 21 cm2 x 5 km/h x 2 minutes
Reason (R): The volume of water that runs through the pipe in 2 minutes = area of cross-section in cm2 x speed of water through it in cm/s x time in seconds
- A is true, R is false.
- A is false, R is true.
- Both A and R are true.
- Both A and R are false.