Express 2Cos(a) - Sin(a) in the form RCos(a+b) Give the exact value of R and the value of b in degrees to 2 d.p.

R = 50.5

b = 26.57 degrees

Answered by William F. Maths tutor

3844 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

The region R is bounded by the curve y=sqrt(x)+5/sqrt(x) the x-axis and the lines x = 3, x = 4. Find the volume generated when R is rotated through four right-angles about the x-axis. Give your answer correct to the nearest integer.


Why is (x^3 - 7x^2 +13x - 6) divisible with (x-2)?


How do you solve a Differential equation using integrating factors?


Find the derivative of y=e^(2x)*(x^2-4x-2).


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences