Math, asked by anzeelabhutia, 11 months ago

prove that sec70°sin20°-cos20°cosec70°=0

Answers

Answered by krishnaGarg935

3

sec 70° cos (90°- 20°) - cos20°sec (90°-70°)

sec70 cos 70 - cos20 sec20

1/cos70 cos70 - cos20 1/cos20

1-1

0

Previous Question

Next Question

Similar questions

Hindi, 6 months ago

please give me answer...

Business Studies, 6 months ago

Discuss the pros and cons of using third party logistics for Jetstream’s aftermarket service?What potential risks exist with outsourcing the aftermatket services to a 3PL?What transportation and logistics activities should be considered for outsourcing in this situation? Should Jetstream obtain these services on a tactical or stratigic basis?

English, 6 months ago

what penalties or punishments may you get, if you do not carry out your responsibilities?

English, 11 months ago

Which Country Banned Plastic Bags...

English, 11 months ago

Usage Of Plastic Bags Which Are Harmful To Environment...

Geography, 1 year ago

What is GDP and it's objectives and factors...

World Languages, 1 year ago

about rice in telugu...

Math, 1 year ago

Find the series:10,7,12,14,__ 1) a.13 2) b.15 3) c.17 4) d.9...