求助-另一道数学题

qigeerUID: 2212559

The number of hours of daylight, d, in
Hartsville can be modeled by d=35/3+(7/3)sin(2∏*t/365)
, where t is the number of
/ {+ J5 e7 I! e3 `( m) m5 gdays after March 21. The day with the greatest
number of hours of daylight has how many
& C. n0 K; C2 x+ umore daylight hours than May 1? (March and
May have 31 days each. April and June have
: G8 f; A- u8 u( R5 [30 days each.)
(A) 0.8 hr (B) 1.5 hr (C) 2.3 hr
! U: K& A# b1 g( X(D) 3.0 hr (E) 4.7 hr

yadcxUID: 93144

你想问什么?

sandyluoxUID: 2138677

他想问选哪个吧