Question

The angle between the lines 4x - y + 9 = 0, 25x + 15y + 27 = 0 is

Answer 1

Answer:

Given,

4x - y + 9 = 0-------------(1)

Now,

=>15y + 27 = 0

=>15y = -27

=> y = -27/15

=> y = -9/5

Now putting y = -9/5 in equation (1)

=>4x - y + 9 = 0

=>4x - (-9/5) + 9 = 0

=>4x + 9/5 +9= 0

=>4x = -9 - 5/9

=>4x = -9*9 - 5/9

=>4x = -81 - 5/9

=>4x = -9 -5

=>4x = -14

=>x = -14/4

=>x = -7/2

=>x = -3.5

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###Hope it will help you###

Answer 2

Answer:

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