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

please and thank you! :) mass is a measure of the amount of matter in a subject. which of the following is TRUE about mass? a. Mass can be measured using a trip

what kinds of personalities are known as national luminaries?

Someone please answer please don’t take my points. 3. What did Pythagoras and Hippocrates contribute to science

in cooking the french word for cream is créme so is there anything wrong if i spell it as creme or créme?

1. 2x + 2 - (2x - 14) = 5x + 2 2. 2x + 10 - (-2x + 7) = -7x + 14 Please help me solve for x

weather is varaible condition of atmosphere justify the statement with eg

How should we settle disputes arising in our community life.

What particular environmental issue is present in your community? why do you consider this as an environmental issue?

We find specific information by noting _____.

What surveying tool did the Romans use to line up points in their road building? A.Groma B.Psychrometer C.Compass