PLEASE HELP I'LL MARK U BRAINLIEST PLSSS HELP!!
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Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 23:00
40 points. given: two congruent angles ā c and ā r are supplementary. prove: ā r and ā c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.
Answers: 2
Mathematics, 22.06.2019 02:30
Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal
Answers: 1
Physics, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Geography, 26.07.2019 17:30
Mathematics, 26.07.2019 17:30