True/False. If the answer is true, provide an explanation. If it is false, give a counter-example or an explanation. a) Let B be a basis for R^n. The coordinate function CB is an isomorphism.
b) Let T:R^7 → R^5. If dim(Im(T)) = 3 then dim(ker(T)) = 2.
c) Letf:R^n → R^n be a linear transformation and let B1 and B2 be bases of R^n. If f is an isomorphism, then [f]B1 B2 is also an isomorphism.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

depending on others is critical to survival. my source is apex!

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a