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PreCalculuscheck answers
Express 52i in polar form. Express your answer in radians to the nearest hundreth. r=sqrt5^2+2i^2 which equals sqrt21.Arctan of 2/5+pi equals 18.7 Polar form=sqrt21 cis 18.7 Is this correct??
asked by Lucy on September 13, 2008 
PreCalculuscheck answers
Express 52i in polar form. Express your answer in radians to the nearest hundreth. r=sqrt5^2+2i^2 which equals sqrt21.Arctan of 2/5+pi equals 18.7 Polar form=sqrt21 cis 18.7 Is this correct??
asked by Lucy on September 1, 2008 
math b
Combine the radicals sqrt 72 + sqrt 18 6sqrt7  4sqrt7 Multiply & express in simplest form sqrt5 x sqrt20 1/3sqrt18 x sqrt16 Divide & express in simplest form sqrt80 / sqrt5 sqrt150 / sqrt3 Rationalize the denominator 5 / 2sqrt3
asked by jason silverman on January 2, 2008 
math 12 logarithms
I need to express log base 5 sqrt5 =0.5 in exponential form. Would it be 5^0.5 =sqrt5. I'm not really understanding this unit very well. Any explaination would be greatly appreciated.
asked by sandy on March 11, 2010 
ALGEBRA 1
change 50 to 25*2 sqrt 50 = 5 sqrt2 change 8 to 4*2 Nope: (sqrt3sqrt5)(sqrt3sqrt5). remember (ab)(ab)= a^22ab + b^2 Simplify.Express in simpliest radical form. 1.3sqrt2 +sqrt50 Cannot be solve. Terms have unlike radicals
asked by bobpursley on April 11, 2007 
maths
The rectangular coordinates of a point are given (5,5root3). Find polar coordinates of the point. Express theta in radians. Answer must be in form ā(Type an ordered pair. Type an exact answer in terms of pi.Use integers or
asked by Asfand on November 28, 2016 
calculus
for the point with cartesioan coordiantes (5,2) find polar coordinated such that r>0. express it in radians. so far i got the answer to be .38805...is dat the answer or should i add 2pie or 360 to get r>0? Add 2PI but it says to
asked by amy on April 17, 2007 
PreCalculus
I need helpI do not understand. The question is this: Write 2x+y=5 in polar form. By following the example in the book I get: 5sqrt5/5=1/sqrt5*sqrt5/2. I do not know how to proceed but the answers I have to choose from are: a)
asked by Lucy on August 30, 2008 
math
(i) Express the complex number z = 4i/(1iā3)in Cartesian form. (ii) Determine the modulus and argument of z, and hence express z in polar form. (b) Solve the equation z4 ā z = 0, expressing your solutions in Cartesian form.
asked by s17 on October 29, 2018 
Pre Cal.
Express 5sqrt(3)  5i in polar form. A: 10(cos(11pi/6) + i sin(11pi/6)) Express 4(cos(3pi/4) + i sin(3pi/4)) in rectangular form. A: 2sqrt(2) + 2sqrt(2i Write 2x+y=5 in polar form. A: sqrt(5)= r cos (theta27degrees) Are these
asked by Jeremy on August 15, 2009