Cho tam giác ABC vuông tại A có góc B = ∝. Chứng minh rằng 1. sin ^2 ∝ +cos ^2∝ =1
2. tan ∝ = sin ∝ : cos ∝
3. 1 + tan^2 ∝ = 1: cos ^2 ∝
4. 1 +cot ^2 = 1: sin ^2 ∝

15 point ! ~ see if you know the answer to both you!

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%