Let f(x) = 9x3 + 21x2 − 14 and g(x) = 3x + 1. Find f of x over g of x. 3 times x squared plus 6 times x minus 2 minus 12 over th
e quantity 3 times x plus 1 3 times x squared plus 6 times x minus 2 plus 12 over the quantity 3 times x plus 1 3 times x squared plus 6 times x plus 2 minus 12 over the quantity 3 times x plus 1 3 times x squared plus 6 times x plus 2 plus 12 over the quantity 3 times x plus 1
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If BD=DC that means triangle CDB is isosceles triangle and the measure of angles ∡CDB and ∡BCD is the same
∡CDB=∡BCD=70°
The angles ∡ADB and ∡CDB are adjacent and suplementary angles
It means ∡ADB + ∡CDB = 180°
∡ADB = 180° - ∡CDB
∡ADB = 180° - 70°
<u>∡ADB = 110°</u>
∡CDB=∡BCD=70°
The angles ∡ADB and ∡CDB are adjacent and suplementary angles
It means ∡ADB + ∡CDB = 180°
∡ADB = 180° - ∡CDB
∡ADB = 180° - 70°
<u>∡ADB = 110°</u>