a) write 1/16 as a power of 2
b) write 2 as a power of 8
c) Rationalise the denominatore of (a+√a) / (√a)
Simplify the answer as much as possible
please show your working as I am completely stuck! 🙁 thanks
✅ Answers
? Best Answer
b) a^8 = 2
Multiply powers on both sides by 1/8
a = 2^(1/8)
2 as a power of 8 = 2^(-8)
If you meant to write 8 as a power of 2, it equals 2^3
c)
a + √a…..√a
———-x—-
…√a………√a
a√a + a
———-
….a
√a + 1
I think (b) should be 8^(1/3)
(2 is the third root of 8)