Reduce the quadratic form 2x² + 2y² + 2z² - 2xy+2zx - 2yz to the canonical form by orthogonal reduction. Hence find Nature, rank, ...
3^2*2^2-2^2+3^3
9950139.3303
9086092.5474
2330849.8777
2205284.2171
19036231÷10948
19159206606
193223817554
9177064342
2189613212
5775378...
57.7537...
D and E are points on the sides AB and AC respectively of a ΔABC such that DE ∥ BC. Find the value of x when AD = (7x − 4) cm, AE...
