Question

Solve the unticked questions.? Please

Answer 1

(5).p(1/2)=2×(1/2)^4-a×(1/2)^3+4×(1/2)^3+2×1/2+1

;p(1/2)=2×1/16 - a/8+4/8+2/2+1

;p(1/2)=1/8 - a/8 + 1/2 +1 +1

;0=(1-a+4+8+8)/8

;1-a+20=0

;-a = -21

;a=21

(6)..[5{(8)^1/3+(27)^1/3}^3]^1/4

;[5{2+3}^3]^1/4

;[5×(5)^3]^1/4

;(5×125)^1/4

;4√(5×5×5×5)

;5
is your answer