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

3663 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Differentiate y=sin(x)*x^2.


The curve C has equation y = x^3 - 3x^2 - 9x + 14. Find the co-ordinates and nature of each of the stationery points of C.


Find the normal to the curve y = x^2 at x = 5.


Integrate, with respect to x, xCos3x


We're here to help

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

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences