Come si semplifica #cos x + sin x tan x #?

Come si semplifica #cos x + sin x tan x #? Risposta: #secx# Spiegazione: #”using the “color(blue)”trigonometric identities”# #•color(white)(x)tanx=sinx/cosx” and “secx=1/cosx# #•color(white)(x)sin^2x+cos^2x=1# #rArrcosx+sinx xx sinx/cosx# #=cos^2x/cosx+sin^2x/cosx# #=(cos^2x+sin^2x)/cosx=1/cosx=secx#

What is exact change in position of the particle?

What is exact change in position of the particle? Risposta: Change in position is also called displacement. It is a vector quantity. Spiegazione: Dato #f(t)=15-5t# at #t=0#, #f=15# at #t=1#, #f=10# at #t=2#, #f=5# at #t=3#, #f=0# at #t=4#, #f=-5# Plot graph as below #”Displacement”=”Area under the curve for “t=0 to t=4# Sappiamo che #”Area … Leggi tutto