Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
In an acute angled triangle,if sin(A+B-C)= 1/2 and cos(B+C-A)= 1/√2, find A,B and C
sin 30=1/2 and cos45= 1/root2A+B-C=30B+C-A=45A+B+C=180B=75/2C=75A=67.5
It is given that sin (A+B-C)=1/2 and cos(B+C-A)=1/(root)2But, sin 30=1/2 and cos 45= 1/(root)2=>A+B-C=30------(1)and B+C-A=45-------(2)from (1) and (2),A=135/2B=75/2C=75
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -