Cho tam giác ABC vuông tại A có góc B = ∝. Chứng minh rằng
1. sin ^2 ∝ +cos ^2∝ =1
2. tan ∝...
Mathematics, 18.09.2021 14:20 lea5261
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 ∝
Answers: 2
Mathematics, 21.06.2019 14:40, beebeck6573
Chose the graph below that represents the following system of inequality’s
Answers: 2
Mathematics, 21.06.2019 15:40, aaliyahmaile13
Yo y do yall have 2 stars that means yall wrong bro
Answers: 1
Mathematics, 21.06.2019 21:00, Anybody6153
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
English, 21.07.2020 19:01