In general, it is difficult to show that two matrices are similar. however, if two similar matrices are diagonalizable, the task becomes easier. in the exercise below, show that a and b are similar by showing that they are similar to the same diagonal matrix. a = 3 −1 2 0 , b = −1 1 −6 4

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

step-by-step explanation:

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun