Math, asked by sudhirkr878, 2 days ago

find the value of cos^2 13cos^2 47 +cos^2 73

Answers

Answered by Anonymous

1

cos2 73º + cos2 47º - sin2 43º + sin2 107º

= cos2 (90 – 17) + cos2 (90 – 43) – sin2 43) + sin2 (90 + 17) = sin217 + sin243 – sin243 + cos217 = 1

Previous Question

Next Question

Similar questions

Social Sciences, 1 day ago

The constitution came into force on _______. a) 15th August 1947 b) 26th November 1949 c) 26th January 1950 d) May 1952...

Social Sciences, 1 day ago

Explain the term ‘Preamble’.

Social Sciences, 1 day ago

_______ was the first president of India. a) Dr. Rajendra Prasad b) Dr. S. Radhakrishnan c) Dr. Zakeer Hussain d) Sri.V.V. Giri...

Math, 2 days ago

Three consecutive integers add up to 51. What are these integers? tell the whole answer like I mean I don't want just the answer whoever gives me the perfect answer I will give him crown...

History, 2 days ago

The British rulers who did good for india speech.

English, 8 months ago

My grandmother rests/is resting now after the day's work...

Math, 8 months ago

A car moving along a high way with a speed of 126 km per hour is brought to rest with in a distance of 200 metre. How long (time) does it take for the car to stop?

Math, 8 months ago

divide99999999by 999...