Question

all the value of the parameter a for which inequality given below is satisfied by atleast one real x is
A.a>=2
B.a>2
C.a<=2

Answer 1

\[4^{x}-a2^{x}-a+3\le 0\]

Answer 2

i solve it using hit and trial bt i m little confused about a=2 and answer is first option

Answer 3

let 2^x be y
then 4^x = y^2
got this ?

Answer 4

yaa

Answer 5

the equation wud be y^2-ay-a+3<=0

Answer 6

wt happnd is is it wrong

Answer 7

y^2-ay +(3-a) <=0
Ay^2+By+C <=0
so find A,B,C from here,
then for solutions to be real
B^2-4AC >=0

Answer 8

bt there is a+6 also wht to do vid dat

Answer 9

answer wud be -infinity to 6 also

Answer 10

@hartnn pls...reply