Math, asked by Sorphil, 1 year ago

Evaluate $\frac{3cosA - 2cos 4A}{sin3A + 2sin4A}$ , when A = 150°

Preferably using double and triple angle formula
(ie sin 2A = 2sinAcosA)
(sin 3A = 3sinA - 4tan^3A, etc)

Sorphil: >edit sin3A = 3sinA - 4sin^3A

Answers

Answered by Kanupriya07

0

the formula of sin3A is wrong....it is sin3A =3sinA -4sin^3 A

Attachments:

Previous Question

Next Question

Similar questions

English, 7 months ago

As a principal of Mount Carmel School Ahmedabad, prepare an advertisement for a local newspaper inviting application for the post of a computer teacher in your school.. Please ans as fast as possible... Spam will be reported... Thankyou!!

Math, 7 months ago

Rs. 350. what is the greatest possible profit that might be made in selling 15 books? ₹150 से ₹300 के बीच के मूल्यों पर किताबें खरीदी जाती है और ₹250 से ₹350 के बीच के मूल्यों पर उन्हें बेचा जाता है तो 15 किताबों को बेचने पर अधिकतम लाभ क्या होगा? (a) Cannot be determined (b) Rs.750...

English, 7 months ago

"who broke the window?"said the man change the narration...

Math, 1 year ago

please solve this problem...

Science, 1 year ago

taj mahal poem quesions...

Physics, 1 year ago

Name three sub-atomic particles. List the name of their discoveres. Their mass and charge.

Math, 1 year ago

a path of width 2m runs around a Square Garden of side 30 m find the area of path...

Science, 1 year ago

If a Bacteria could divide into two every 20 minutes, how many bacteria would be produced after eight hours?