x = −5 can be written as equation in two variable in which of the following ways
1x+1y=5
1x+0y= -5
1x+0y+5=0
both B and C
Both option B and C are basically x=-5
x = −5 can be expressed as a linear equation in two variables.
x = −5 can be expressed as a linear equation in 2 variables.
If tan−1 x+tan−1 y=4π5,then cot−1 x+cot−1 y equals to
(a) π5 (b) 2π5 (c) 3π5 (d) π