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L.H.S.=cos 12+cos 60+cos 84=cos 12+(cos 84+cos 60)=cos 12+2.cos 72 . cos 12=(1+2sin 18)cos 12=(1+2.(√5 -1)/4)cos 12=(1+.(√5 -1)/2)cos 12=(√5 +1)/2.cos 12 R.H.S=cos 48+cos 24=2cos 36. cos 12=2.(√5 + 1)/4)cos 12=(√5 +1)/2.cos 12 L.H.S = R.H.S
Given So calculate AB. Solution The new matrix will contain size 2 x 4. The entry in row 1 and column 1 of the new matrix will be determined by multiplying row 1 of
The sum of three consecutive even integers is 102. What is the value of the largest consecutive integer? Three consecutive even integers are numbers in order such as 4, 6, and
what is the Laplace transform of e^9(-t)^a)
Five cards - the ten, jack, queen, king and ace, are well shuffled with their face downwards. One card is then picked up at random. (i) What is the probability that the card is
Here we have focussed on how mathematics learning can be made meaningful for primary school children. We have done this through examples of how children learn and how we can create
Manuel is a cross-country runner for his school’s team. He jogged along the perimeter of a rectangular field at his school. The track is a rectangle that has a length that is 3 tim
Steve earned a 96 percent on his ?rst math test, a 74% on his second test, and an 85 percent on his third test. What is his test average? Add the test grades (96 + 74 + 85 = 25
How do I find a bearring using trig?
Concrete Operational Stage : Piaget describes a five-year-old boy playing with a collection of pebbles. First, he laid them in a line and counted along the line from left to righ
Trapezoid Rule - Approximating Definite Integrals For this rule we will do similar set up as for the Midpoint Rule. We will break up the interval [a, b] into n subintervals of
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