Math, asked by sandhyapilla000, 8 months ago

9. Expand the following
I)sin (A+B-C)
ii) cos (A-B-C)

Answers

Answered by aksharamalu71

5

Step-by-step explanation:

cos (A-B-C)

cos((a-b)-c)

=cos(a-b)cosc+sin(a-b)sinc

= (cos a cosb+Sina sinb)cosc +(sina cosb - cosa sinb)sinc

=cosa cosb cosc+Sina sinb cosc+sina cosb sinc- cosa sinb sinc

sin(a+b-c)

=Sin(a+b) cosc+cos(a+b) sinc

=Sina cosb cosc+cosa sinb cosc+ cosa cosb sinc -Sina sinb sinc

Previous Question

Next Question

Similar questions

Math, 4 months ago

2. In order to raise the temperature of 1.0 kg of a substance from 00c to 100 oc, 47,000 J of heat are needed. What is the specific heat capacity of the substance?

English, 4 months ago

why was the Set Causia George was suitable for gharials why couldn't they survive even there?

Math, 4 months ago

منم Draw a circle of radius sum som construct tangents to it so that are inclined other angle of Go so that they a pair of to each...

English, 8 months ago

In the following passage, there is an error in each line. Underline the error and write the correction in the space provided. The train was a miraculous intention a) _______________ of science. It appeared before you for b) _______________ a short time or disappears immediately c) _______________ When the train has leaved, d) _______________ the platform present a deserted look e)...

English, 8 months ago

write an email in minimum 120 words to your friend who has recently move to Germany ,asking him /her about his/her new school and about the life in Germany ...

Math, 11 months ago

tell me the answers...

English, 11 months ago

a memorable day paragraph school prize distribution ...

Hindi, 11 months ago

explain adinama in english...