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Show that 6sin(60◦) + 5tan(60◦) can be written in the form √k where k is an integer.

sin(60◦) = √3 /2 

tan(60◦) = √3

6sin(60◦) + 5tan(60◦) = 3√3 + 5√3 = 8√3 = √64√3 = √192

AG
Answered by Alistair G. Maths tutor
4150 Views

Solve the following equations x^2-2x+4=0, x^2+4x+1=0

x2-2x+4= (x-2)(x-2)=0  x=-2 (double root)  

x2+5x+1=0

x1,2= -5+_ (52-4(1)(1) )0.5/2 

x1=4.8     x2=-0.2 (t...

KF
Answered by Kyriakos F. Maths tutor
3410 Views

How can a child inherit a disease from their parents if neither parent has the disease?

We inherit two copies of a gene called alleles, one from each parent. The alleles we inherit from our parents can either be dominant or recessive. A dominant allele requires just one copy of the allele to...

JT
Answered by Joanna T. Biology tutor
4014 Views

I am having trouble learning Mitosis, could you explain it for me please?

Mitosis is a form of asexual reproduction in plants. A parent cell splits into 2 identical daughter cells. There are 46 Chromosomes in each cell and each chromosome is copied exactly, using chromatids to ...

AL
Answered by Alex L. Biology tutor
2736 Views

Why does Dido refuse to look at Aeneas in Aeneid 6.450–476?

This passage takes place in the Underworld, and is a confrontation between the ghost of Dido and the living Aeneas, who has been allowed to visit the Underworld so that he can speak with the ghost of his ...

LA
Answered by Lavinia A. Latin tutor
8012 Views

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