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c), 2131+41, d), 11+11+x b), cosv=cos23. c), cot2x=1tan2x, d), tan2u=sinu1+cosu \u222b sinx cosx dx = x tanx+ ln | cosx|+ C 26. u = x, dv = tan2 x dx = (sec2 x\u2212 1)dx, du = dx, v = tanx\u2212 x;\u222b x tan2 x dx= x tanx\u2212 x2 \u2212 Vinkeln är x=45^{\circ} +n\cdot 180^{\circ}, n\in \mathbf{Z}. Exempel 2 Bestäm \tan 2x = \tan 3x. Lösning. Först söker vi definitionsmängderna.
XP + 1. XP, p = -1. Ptit C. In x. (x > 0) ex. -1, x > 0 In x + c sin x. COS X. COS X. - sinx tan x sin kx, k#0 cos kx, k#0 ekr, k#0.
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(x > 0) ex. -1, x > 0 In x + c sin x. COS X. COS X. - sinx tan x sin kx, k#0 cos kx, k#0 ekr, k#0. 2 = 1 + tan2 x. cos(x+y) = cos x cos y - sin x sin y sin 2x = 2 sin x cos x cos 2x = cos2 x - sin2 x = 2 cos2 x - 1 = 1 - 2 sin2 x \endaligned \alignedat 2 sin x = ± tan x / √{1 + tan2 x}
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Substitute the values , , and into the quadratic formula and solve for . Simplify. Solve for x tan(x)^2-tan(x)-2=0.
+ πZ x ↦− → sin u(x) x ↦− → u (x) cos u(x).
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2.5. kr det = 1, then x :Q.5. If_tan 3x tan 2x= 1, then - Doubtnut
Rohit Bhardwaj, Research Assistant at IIMA. Answered 10 months ago.
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2011-10-24 Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ … 2020-02-13 sin 2 (x) + cos 2 (x) = 1.