15 . Evaluate log, , given that log, 2 = 0.2789, log, 3 = 0.4421, and log, 7 = 0.7831. 16. Evaluate log, v10b , given that log, 2 = 0.3562 and log, 5 = 0.8271 - -. 17. Simplify In Vex 18. Simplify In 5e 19. Simplify bloss 20. Simplify log, b 21 . Simplify log. Va 22. Simplify In Vex 3 . Simplify: 7+ 2IneS= 24 . Evaluate log, 7 using the change of base formula. Write as a sum, difference, or multiple of loganthms: 5. Evaluate log, 13 using the change of base formula | 26. a263 log?Pre-Calculas H Name: Date: 1.Solve each equation and find the exact answer, * ) b) log, (x 1)-log, (3x49)=0 c) 2logx = - log4+log(x+4) d) log[log, (log, 9)]=x 2. If log, a = R and log, b=T, find. 3.If loga=K and logb=M , express 27a2 10a3 log in terms of K and M. 1 . . 5.Evaluate: 4. Express log, 12-(log, 4-log, 5) as a 27 1083 4 - 1083 4 -1093. 3 logarithm of a single number. -1093 3 3.3.4 Group WORK ( C/W ) Solve - Leave all answers in EXACT form. Show ALL work on separate paper!! 1. 5(8*)=325 2. 4e 2x = 40 ex = ex-2 4. 2x2e2x+ 2xe2x =0 5. 101+2109* = 1 5. 22x 4 2*+2 - 5=0 7. log, (x2 +8) =10g2 x+10g, 6 8. log, (2x+1) -10g4 (x-2) =1 9. 10g10 4x -10g10 (12 + V/x) =2 NI 10. In 2x + In(3x-e) -2=In8 11. log2 (logs x) =1.iential and Logarithmic Equations Name: K RK ON SEPARATE PAPER!!! Date: 1-2x = 32 ch equaled. TE PAPEDIT YOUR CALCULATOR UNLESS INSTRUCTED TO DO SO. SHOW Period 2. 328 + 3 +41 = 4 3. log: 64=-3 4. 10g6(x+3) +log6(x+4) =1 6. logz (x1082* ) = 4 5. log, (x+1) -log.(x) = 1 7. log3 (x2 ) =2 9. 3x-5=10g x-log -5 12. Solve log x = x graphically Use your calculator at the end to round solution to nearest thousandth 11. Solve xe* -1=0 graphically using your calculator. 10. 5+-1 = 31+2 using your calculator X -