[" 13.Way ABC the "],[[" (A) "a=2,0" ? "," (B) "a=3,c-a=3" Pre "c=2" at."vec a" - "-," (C) "a=4,c=3," (D) "a=6,c=8]]

If in a triangle A B C , right angle at B ,s-a=3a n ds-c=2, then a=2,c=3 b. a=3,c=4 c. a=4,c=3 d. a=6,c=8

If in a triangle ABC, right angle at B,s-a=3 and s-c=2, then a=2,c=3 b.a=3,c=4 c.a=4,c=3 d.a=6,c=8

If vec a+2"" vec b+3"" vec c="" vec0 and |"" vec a|=6,|"" vec b|=3a n d|"" vec c|=2 , then angle between vec aa n d"" vec b is

If vec a+2"" vec b+3"" vec c="" vec0 and |"" vec a|=6,|"" vec b|=3a n d|"" vec c|=2 , then angle between vec aa n d"" vec b is

If a : b=4:5 and b : c=2:3, then a : c (a) 4:3 (b) 8: 15 (c) 8:9 (d) 5:3

If a,b,c are in A.P.,prove that - a^3-8b^3+c^3+6abc=0

If the sides of Delta ABC are a = 4, b = 6 , c = 8 , then show that 4 cos B + 3 cos C = 2.

If the sides of a ABC are a=4,b=6 and c=8, show that 4cos B+3cos C=2

If a ne 6, b , c satisfy |(a,2b,2c),(3,b,c),(4,a,b)|=0 , then abc =