Q8 of 80 Page 302

If x tan 30° + y cot 60° = 0 and 2x – y tan 45° = 1, then let us write, by calculating the values of x and y.

⇒ tan45 = 1


⇒


⇒


⇒ xtan30 + ycot60 = 0


⇒


⇒ = 0


⇒ x + y = 0


⇒ x = -y


⇒ 2x-ytan45 = 1


⇒ 2(-y)-y(1) = 1


⇒ -3y = 1


⇒


⇒


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