Math, asked by siva60, 1 year ago

cos20cos70-sin70sin20=0

Answers

Answered by Anonymous

2

cos(90-20)cos70-sin70sin(90-20)
sin70cos70-sin70cos70
1-1=0

Answered by smritiverma

1

sin70cos70-sin70cos70
=0

chirag8874695183: short cut nhi chalta.... give solution plz

Previous Question

Next Question

Similar questions

French, 7 months ago

Mettez ‘Qui est-ce ?’ ou ‘Qu est-ce que c’est ? (a) C’est Mohit. (b) Ce sont des crayons. (c) C’est un bateau. (d) Ce sont des filles.

Science, 7 months ago

metal oxides are called...

Math, 7 months ago

Solve the system of equations 3x - 5y = 20 and 6x – 15y = 30 by using elimination method .

Environmental Sciences, 1 year ago

what is the English word which all the illetarates also know...

Science, 1 year ago

who make do or die slogan...

Science, 1 year ago

Name 2 ingredients in our food that are not obtained from plants and animals.Mention one source for each ingredient...

English, 1 year ago

In the excerpt of Indira Priyadarshini. what are the values projected by her?

Math, 1 year ago

how to solve 900x =x^2- 1500x...