Math, asked by Anny121, 1 year ago

Explain the cross method applied in co-ordinate geometry and also write its formula.

Answers

Answered by pqr123

x. y. 1

b1. c1. a1. b1

b2. c2. a2. b2

= x. y
------------------------ = ---------------
(b1×c2) +( b2×c1) (c1.a2)+c2a1)

= 1
---------------
(a1.b2)+(a2.b1)

Previous Question

Next Question

Similar questions

Physics, 8 months ago

5. Calculate the electricity bill amount for a month of 31 days, if the following devices are used as specified : (a) 3 bulbs of 40 W for 6 hours. (b) 4 tubelights of 50 W for 8 hours, (c) A TV of 120 W fro 6 hours. Give the rate of electricity is Rs 2.50 per unit. please tell...

Physics, 8 months ago

A shiny object reflects light . Will a shiny object make a shadow when light shine on it? explain your answer...

Chemistry, 8 months ago

An acidified solution of potassium chromate was layered with an equal volume of amyl alcohol. When it was shaken after the addition of 1 mL of 3% H_2 O_2, a blue alcohol layer was obtained. The blue color is due to the formation of a chromium (VI) compound ‘X’. What is the number of oxygen atoms bonded to chromium through only single bonds in a molecule of X?

Social Sciences, 1 year ago

what are the main factors that affect the climate of india?

Chemistry, 1 year ago

calculate the number of proton ,neutron, and eletron of sodium atom give that atomic number of sodium is 11 and masses number is 23...

Social Sciences, 1 year ago

what are reserved constituencies?why do we have this system in our country?

English, 1 year ago

importance of female education in india(100 words)...

Chemistry, 1 year ago

physical state of water at zero degree celsius...