Math, asked by abhishek41736, 1 year ago

prove that
cos10-cos50=sin20

Answers

Answered by lucky1088

1

Step-by-step explanation:

Cos10=cos(90-80)=sin80

Cos50=cos(90-40)=sin40

Cos10-cos50=sin20

Sin80-sin40=sin20

Sin(80-40)=sin20

Sin20=sin20

Therefore,

Cos10-cos50=sin20

Previous Question

Next Question

Similar questions

Math, 6 months ago

Find spuire root of 166464 using by division method...

Computer Science, 6 months ago

3. Which of the following attribute is used to specify the space between the cell wall and the contents of the cell? a) Cellspacing b) Colspan c) Cellpadding d) Rowspan...

English, 6 months ago

He had told me to do it change to passive voice...

Math, 1 year ago

factorise 2x cube -3x square -17x+30...

History, 1 year ago

where mahalwari settlement introduced...

Math, 1 year ago

please please please solving in details...

CBSE BOARD XII, 1 year ago

He ___ over the map, searching for his destination.

English, 1 year ago

newspaper headlines:- PM promise to a electricity upto 2022...