Math, asked by sakshi21052002singh, 1 year ago

Prove that :sin(-420°)cos(390°)+cos (660°)sin(330°)=-1

Answers

Answered by sprao534

6

Please see the attachment

Attachments:

Previous Question

Next Question

Similar questions

Science, 6 months ago

A solution turns red litumus blue its p^4 is likely to be_...

Social Sciences, 6 months ago

which of the following animals is not found in grasslands answe...

Biology, 6 months ago

explain succession of plant...

Math, 1 year ago

product of two number is 20736 and HCF is 54 find the LCM ...

Math, 1 year ago

only perfect solution help........ send picture ...

Physics, 1 year ago

What are the factors determining the state of matter?

English, 1 year ago

essay importance of education 120 words...

Math, 1 year ago

please answer the followind...