English, asked by parwana, 1 year ago

cos10cos50_sin10sin50

Answers

Answered by ReetChauhan1112

1

cos10cos50-sin10sin50
we know that,
cosAcosB-sinAsinB=cos(A+B)
so,
=cos(10+50)
=cos60°
=1/2

parwana: thank you so much

Answered by brunila

2

cos10cos50-sin10sin50
=cos(10+50)
=cos60
=1/2
formula used:
cos(A+B)=cosAcosB-sinAsinB

Previous Question

Next Question

Similar questions

English, 8 months ago

The teacher knows your honesty ? Find the phrase and its name .

Physics, 8 months ago

1. North pole of magnet can be identified by a) Another magnet having its poles marked as north pole b) Another magnet no matter whether the poles are mark c) Using an iron bar d) Using iron filings fling's...

Social Sciences, 8 months ago

explain the various funtions performed by political parties...

Computer Science, 1 year ago

what wull happen if yiu create a file with the same name which already exists...

English, 1 year ago

Which sentence is correct? There are 1,000,000 people living in the city. There are one million people living in the city. There are 1 million people living in the city.

Social Sciences, 1 year ago

Why do modern farming methods require more capital. Explain...

Math, 1 year ago

repeated application of product rule....... what is it.....

English, 1 year ago

lose if cattle due to plastic for class 5th...