Math, asked by aryansingh08054, 3 days ago

Cos² 90° – sin² 90° find the value

Answers

Answered by IbrahimKhalil1

1

Answer:-1

Step-by-step explanation:

Cos² 90° – sin² 90°

(cos90°+sin90°)(cos90°-sin90°)=(0+1)(0-1)=-1

Previous Question

Next Question

Similar questions

English, 2 days ago

Who had complained against Tapan?

Math, 2 days ago

find the sum of money that amounts to rupees 5850 in 6 years at 5% per annum...

Math, 2 days ago

the side of two similar triangle are 4:9 what is the ratio what is the ratio of their area...

Environmental Sciences, 3 days ago

गर्मी बरसात सर्दी ऋतुओं के परिवर्तन को क्या कहते है...

English, 3 days ago

JUMBLED SENTENCE COULDNOT / MANY / IT / SHIP / THE / ALTHOUGH / PEOPLE / HUGE / HANDEL / WAS...

Hindi, 8 months ago

dialogue writing between two students about studies in lock down in hindi...

Math, 8 months ago

26. if four numbers 1,2, 1/3m 1/5, 1/x are proportional then x is (a) 6/5 (b) 5/6 (c) 15/2 (d) none of these...

Math, 8 months ago

a general can draw up his soldiers in the rows of 10,18,15and also draw them up in the form of a solid square. find the least number of soldiers...