Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let S be the set of all a 
R for which the angle between the vectors 
and 
is acute.
Then S is equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
For angle to be acute
let log e b = t 
t>0 as b> 1
y = at 2 + 6at-12&y>0, 
t>0
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