Ask a New Question

1. (1-sin²B)/(sin²Bcos²B)= csc²B-sec²B --that's really

1. (1-sin²B)/(sin²Bcos²B)= csc²B-sec²B--that's really the given. please help.
1. 2 answers
2. asked by anjelica318
3. 606 views
sin²B - sin²Bcos²B
1. 1 answer
2. asked by mr o qamata
3. 223 views
Prove thatsin²A-sin²B/sinAcosA-sinBcosB = tan(A+B)
1. 0 answers
2. asked by Kewal
3. 773 views
If A + B + C = 180° prove thatSin2A + sin2B – sin2C = 4cosAcosBsinC
1. 1 answer
2. asked by Kewal
3. 952 views
Prove that (1-sinb)/(1+sin2b)=tan^2(45-b) plz the b means beta???
1. 2 answers
2. asked by Collins
3. 610 views
If A + B + C = π, prove that: ( sin2A + sin2B + sin2C ) / ( sinA + sinB + sinC ) = 8 sin(A/2) sin(B/2) sin(C/2)
1. 2 answers
2. asked by manish
3. 918 views
If sin a + sinb + sinc = 4cosa/2cosb/2cosc/2Then sin 2a + sin2b + sin 2c = 4cosacosbcosc
1. 1 answer
2. asked by Anonymous
3. 515 views
Prove that in any triangle ABC Sin2A+Sin2B+Sin2C/SinA+SinB+SinC=8Sin(A/2)Sin(B/2)Sin(C/2)
1. 1 answer
2. asked by joel
3. 1,053 views
Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2
1. 1 answer
2. asked by joel
3. 934 views
Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2
1. 1 answer
2. asked by Joel
3. 995 views