Let f (x) = x4 – 2x3 – 3x2 + 4x + 4, g of x is equal to the square root of the quantity x squared minus x minus 2 end quantity a
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Assume that,
The two angles of one triangle are congruent to two angles of a second triangle.
To prove: The third angles of the triangles are congruent.
Since, two angles of one triangle are congruent to two angles of a second triangle.
Therefore,
Adding these two we get,
Cancelling 180 on both sides, we get
Hence, if two angles of one triangle are congruent to two angles of a second triangle, the the third angles of the triangles are congruent.