Bài 1. Cho ma trận 1

A= 1

1

1

2 1

1

2

-1

Chứng minh A khả nghịch. Tim ma trận nghịch đảo của Á

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.