If `cosA=4/5`, then the value of tanA is:
`(a) 3/5`
` (b) 3/4`
` (c) 4/3`
` (d) 5/3`

If a/b=4/3, then the value of (6a+4b)/(6a-5b) is -1 (b) 3 (c) 4 (d) 5

What is the value of (a+b)/(a-b) , if a/b=4? 3/5 (b) 5/3 (c) 4/5 (d) 5/4

If |z|+z=3+i , then value of |z| is (A) 5//3 (B) 3//5 (C) 4//3 (D) 3//4

If a binary operation * is defined on the set Z of integers as a*b=3a-b, then the value of (2*3)*4 is (a) 2 (b) 3 (c) 4 (d) 5

If [(2a+b,a-2b),(5c-d,4c+3d)]=[(4,-3),(11,24)] then the value of a+b-c+2d is (a) 8 (b) 10 (c) 4 (d) -8

If log_2log_3log_4log_5A=x, then the value of A is (a) 120^x (b) 2^(60 x) (c) 2^(3^(4^(5^x))) (d) 5^(4^(3^(2^x)))

If 3tanA+4=0 , then the value of 2cotA-5cosA+sinA is equal to

If |z-4+3i|le3, then the least value of |z|= (A) 2 (B) 3 (C) 4 (D) 5

5,5r,5r^(2) are sides of a triangle.Which value of r cannot be possible (a) 3/2( b) 5/4(c)3/4 (d) 7/4