if ∡a and ∡b are complementary angles, that simply means that ∡a + ∡b = 90°.
Find (12y + 20y2 – 2) + (-13y2 + y - 10). Write your answer in standard form.
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if ∡a and ∡b are complementary angles, that simply means that ∡a + ∡b = 90°.