(11) the integrating factor for the given de is (a)e* (b)* x'e (c) xe'; (d) ex; (e) none of these. (12) the general solution of the given de is y = (a) e/x2 +c/(x'e); (b) e/(2x)+ c/(xe); (c)* e/(2x)+ (d) e/(2x-)c/xe); (e) none of these 2x given: + kxy4-2x) dx + (3xy2 + 20xy) dy-0 (13) the value of k so that the above de is exact is 2 (a) 0; (b) 1; (c) 5; (d)* 10; (e) none of these.

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

the answer is x=45 because i said so

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