Math, asked by seshureddyng, 6 months ago

If A+B+C:180 then prove that cos2A-Cos2B+cos2C:1-4sin AcosBsinc

Answers

Answered by mathdude500

1

Step-by-step explanation:

please find the attachment.

Attachments:

Previous Question

Next Question

Similar questions

Chemistry, 3 months ago

Which of the following element has greater shielding effect? A. Rb B. Li C. Na D. K...

English, 3 months ago

You are Vani Sharma, Secretary of the Environment Club of your school. Your school is organizing a Tree Plantation Drive. Write a notice in not more than 50 words about inviting the students of classes VI-VII to take part in it and to bring along the sampling...

Math, 3 months ago

If 50% of a number is added to 50, the result is the number itself. Find the number. The sum of digits of a two-digit number is 8. If 36 is added to this number, the dig reversed. Find the number...

English, 6 months ago

16. He forgave his enemies who _____ him. * a. have wronged b. had wronged c. had been wronged d. none of these...

Science, 6 months ago

Refractive index of water is 4/3 and that of the glass is 3/2 with regard to air. What is the refractive index of glass with respect to the water? 1 point 9/8 8/9 1/2 2...

Political Science, 11 months ago

_ was the military alliance started by the USDR...

Physics, 11 months ago

1. A particle of mass m is situated at a distance / from one end of a rod of mass Mand length I. Magnitude of gravitational force between them, is...

Environmental Sciences, 11 months ago

Answer: \green{\therefore{\text{young 's \: modulus}}= 3.4 \times {10}^{7}N/m^{2}}∴young ’s modulus=3.4×107N/m2 \orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}Step−by−stepexplanation: \begin{lgathered}\green{ \underline\bold{Given : }} \\ : \implies \text{Diameter \: of \: wire (d)= 3mm = 3} \times {10}^{ - 4} m \\ \\ : \implies \text{Length \: of \: wire (l)= 4m} \\ \\...