16cos30° - 5tan60° = √x. Find the value of x.

Split up the two terms: cos30° = (1/2)√3 and tan60° = √3 (from memorised values of cos and tan)Therefore 16cos30° = 8√3 and 5tan60° = 5√3 8√3 - 5√3 = 3√3 = √9 x √3 = √27x=27

DG
Answered by David G. Maths tutor

2555 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

When should you use the sine rule and when should you use the cosine rule?


In one month, Karen takes the bus to school on 25 days. On 5 of these days the bus is late. What fraction of the days Karen takes the bus to school is the bus late? (Give your answer in the simplest form)


How do I expand (x+a)(x+b)? (plus example)


Expand and simplify (3X+9)(X-6)=0


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences