pj8184423 pj8184423

28-12-2020
Mathematics

contestada

cos 30- cos 70=2 sin 50. sin 20.

Respuesta :

prashant12345 prashant12345

28-12-2020

L.H.S=2sin(30+70/2).sin(70-30/2)

=2 sin(100/2).sin(40/2)

=2sin50.sin20

Therefore,L.H.S=R.H.S proved

Answer Link

Otras preguntas

How does the stoppage of long bones growing in length occur?

Halla la equivalencia en kilogramos para los siguientes medidas *25kg *30dg *0,2ng *540mg

Which attitude is disconfirming because it communicates a lack of concern for the welfare of another and implies that the other person isn't very important to y

find the area and round to nearest 10th

Mr. Jay has 100 pairs of shoes in his closet. He has 26 brown pairs, 12 navy pairs, 47 black pairs, and 15 white pairs. What is P (brown|black)

What state's name is from the Sioux for 'sky-tinted waters'? Maybe they meant the 10,000 lakes?

List 3 tips to remember about public speaking?

Explain why the greenhouse effect is necessary but how an enhanced greenhouse effect can harm the planet. Define global warming and explain what has caused the

Calculate the weight and balance and determine if the cg and the weight of the airplane are within limits. front seat occupants = 350 lb rear seat occupants = 3

13 by a 5 ---- 14 evio led teemis rise above to soude en bite signston lapse e bebivio