1.

Y = Cot^-1(2+5x/5-2x)​

Answer»

ANSWER:

2 + 5x \div 5 - 2x = 0 \\ 2 + 5x \times  - 2x + 5  = 0\\ 2 - 10x + 5 = 0 \\ 7 - 10x = 0 \\  - 10x =  - 7 \\ x = 7 \div 10



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