Math, asked by Shruti4002, 11 months ago

If a+b+c=180,then prove that cos3a+cos3b+cos3c=1 - 4 sin3a/2 sin3b/2 sin3c/2

Answers

Answered by assijaat6022

0

Answer:

search on Google

it give excellent answer

Previous Question

Next Question

Similar questions

Math, 5 months ago

for what value of x,that would satisfy 9/4-4/9 >1 0/x-1/2 ?

Math, 5 months ago

18×47=18×50-18×_____...

Computer Science, 5 months ago

FILL IN THE BLANKS Chairman of Wipro Limited is.....................

Chemistry, 11 months ago

Which materials are used in the preparation of blended fibre (polycot)?

English, 11 months ago

Hey solve this urgently and fast Rewrite the following sentences as directed in the brackets.1 The boy was doing his homework. (negative)2. Mr Sharma teaches us Maths. (interrogative)3. My father missed the train by two minutes. (interrogative-negative)4. Rana is buying toys. (negative)5. I forgot his name. (negative)6. It has been raining since morning. (interrogative)7. My friend runs very...

Math, 1 year ago

find the value of A and B for which each of the following system of linear equation has infinite number of solution 2 X + 3 Y =7 .(a+b+1)x +(a+ 2b+ 2 )y = 4(a+ b + 1)...

Math, 1 year ago

Solve--- 305=10x+25x+10x+25-10x²...

English, 1 year ago

Kom grew up in humble surroundings. (Add quest. Tag)...