Math, asked by anandaish9149, 11 months ago

Prove that Cos 135 degree _cos 120 degree /Cos 135 degree +Cos 120 degree =3_2 under root 2

Answers

Answered by ᎷíssGℓαмσƦσυs

3

cos135 -cos 120/cos135 +cos 120

(_1/√2+1/2)/(-1/√2-1/2)

(-2+√2)/2√2/(-2-√2)/2√2

(-2+√2)/(-2-√2)

2-√2/2+√2

उपर नीचे 2-√2 से गुणा करने पर

(2-√2)^2/2

4+2-4√2/2

2(3-2√2)/2

3-2√2

I sure this is your answer

Previous Question

Next Question

Similar questions

Biology, 6 months ago

does the plasmodium parasite also affects the health of female anopheles mosquitoes?

Math, 6 months ago

Solve the following word problems. (a) Find the principal when: (1) Time = 3 years, simple interest = 3600 and rate of interest = 4% p.a. (ii) Time = 4 years, simple interest = 400 and rate of interest = 5% p.a. this is the question of Math chapter name commercial math ...

Math, 6 months ago

A dice is tossed once find probability of getting a number 5 a number less than 5 an old number an even number a number greAter than 6...

Math, 11 months ago

x upon7 +y upon3 =5 by substitution method...

Political Science, 11 months ago

explain the most common way of limiting the powers of government by the constitution...

Biology, 1 year ago

Some plants and animals have adaptations that enable them to survive in a desert ecosystem. Most of these adaptations are a response to which abiotic factor? (1) Number of consumers (2) Number of producers (3) Amount of water available (4) Duration of sunlight...

Social Sciences, 1 year ago

Life time tax means tax payable in one lumpsum is advance for (A) for a period of 15 years (B) for a period of 10 years (C) for a period of 5 years (D) life time of a motor vehicle...

Math, 1 year ago

If sum of two numbers is 58 & their difference is 12, then the numbers are :- (1) 28, 30 (2) 20, 28 (3) 23, 35 (4) 25, 33...