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Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A)+sin(A+2B)=4sin{B-C/2}sin{C-A/2}sin{A-B/2}​
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14 votes
Help me!!!!!!.....

Given conditions A+B+C=180°

then prove that:

sin(B+2C)+sin(C+2A)+sin(A+2B)=4sin{B-C/2}sin{C-A/2}sin{A-B/2}​

User Ian Marshall
by
4.5k points

2 Answers

8 votes

Answer:

hope it helps you have a great day keep smiling be happy stay safe

Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-1
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-2
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-3
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-4
User Anson Horton
by
4.6k points
4 votes

Answer:

Hope it will help :)

see the pics above.

Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-1
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-2
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-3
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-4
Help me!!!!!!..... Given conditions A+B+C=180° then prove that: sin(B+2C)+sin(C+2A-example-5
User Batista
by
4.8k points
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