The sun is a typical _______ star which is classified as having a temperature in the range of 5000 to 6000K.
Let a1, a2, a3, a4 …….. be an arithmetic progression and g1, g2, g3, g4 …… be a geometric progression. If a1+g1=1, a2+g2=4, a3+g3=15 and a4+g4=2, then