What are the exact solutions of sin2x+sinx-2cox-1=0?

sin2x+sinx-2cox-1=0

As we know, Sin 2x =2sinx cosx

2Sinx Cosx+Sinx-2cosx-1=0

Sinx(2cos x+1)-1(2cosx+1)=0

(sinx-1)(2cosx+1)=0

So, either sinx-1=0 or 2cos x+1=0

Sin x=1 or cos x=

x= or multiples of

x= or multiples of

x= or multiples of

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720

0.038

step-by-step explanation: