2^-8 = ?

=1/(2^8) = 1/256

Answered by Maths tutor

3815 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Express 2 cos x – sin x in the form Rcos( x + a ), where R and a are constants, R > 0 and a is between 0 and 90 ° Give the exact value of R and give the value of to 2 decimal places.


Mechanics (M1): Particle moving on a straight line with constant acceleration (Relationships of the 5 Key Formulae)


The curve C has equation ye^(-2x) = 2x + y^2. Find dy/dx in terms of x and y.


Two particles, A and B, are moving directly towards each other on a straight line with speeds of 6 m/s and 8 m/s respectively. The mass of A is 3 kg, and the mass of B is 2 kg. They collide to form a single particle of speed "v" m/s. Find v.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning