Math, asked by dhanraychetan, 5 months ago

If f(x)=2[x]+8 where [x] is greatest integer function of x then

find f(-4.2)

a) -2. b)2. c)0 d)-0.4​

Answers

Answered by amandeep280302
0

Answer:

d)- 0.4

Step-by-step explanation:

given ,

f(x)= 2x + 8

f(-4.2)= 2×(-4.2)+8

==》-8.4 + 8

==》-0.4

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