Mathematics, 02.08.2019 13:30 Joosee4075
Prove the trigonometric identity. show your work on the left hand side, or right hand side, or both.
Answers: 1
![\bf sin^2(\theta)+cos^2(\theta)=1\implies sin^2(\theta)=1-cos^2(\theta)\\\\ \textit{also recall that }\qquad \textit{difference of squares} \\\\ (a-b)(a+b) = a^2-b^2\qquad \qquad a^2-b^2 = (a-b)(a+b)\\\\ -------------------------------\\\\ sin^4(x)-cos^4(x)=2sin^2(x)-1\\\\ -------------------------------\\\\ sin^4(x)-cos^4(x)\implies [sin^2(x)-cos^2(x)][sin^2(x)+cos^2(x)] \\\\\\\ [sin^2(x)-cos^2(x)][1]\implies sin^2(x)-cos^2(x) \\\\\\ sin^2(x)-[1-sin^2(x)]\implies sin^2(x)-1+sin^2(x)\implies 2sin^2(x)-1](/tpl/images/0161/9158/e10f2.png)
Another question on Mathematics
Mathematics, 21.06.2019 22:40
20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)
Answers: 1
Mathematics, 22.06.2019 00:00
Given the diagram below, michael writes, "segment ac is congruent to segment ac." which of the following reasons allow him to write this statement?
Answers: 1
Mathematics, 22.06.2019 00:50
To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.
Answers: 3
You know the right answer?
Prove the trigonometric identity. show your work on the left hand side, or right hand side, or both....
Questions
Physics, 28.01.2020 17:53
Mathematics, 28.01.2020 17:54
Biology, 28.01.2020 17:54
Physics, 28.01.2020 17:54
Mathematics, 28.01.2020 17:54
Chemistry, 28.01.2020 17:54
English, 28.01.2020 17:54
Mathematics, 28.01.2020 17:54
