a1 ,a2....a40 is under APand a1+a5+a15+a26+a36+a40 =105 then what is the sum of the AP
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hope this may help you
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Step-by-step explanation:
( Angle sum property)
105degree + 40 degree +x =180 degree
x+145degree =180 degree
x =( 180 - 145 ) degree
x = 35 degree
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