How much is 90-42 degrees and 5 points 180 minus 42 degrees and 5 points Hurry up····

How much is 90-42 degrees and 5 points 180 minus 42 degrees and 5 points Hurry up····

90 minus 42 degrees and 5 points equals 47 degrees and 55 points (47.916667)
180 minus 42 degrees and 5 points equals 137 degrees and 55 points (137.916667)
The minimum positive period of F (x) = cos (SiNx + cosx)?
f(x)=cosx(sinx+cosx)
=sinxcosx+cos²x
=1/2sin2x+1/2(1+cos2x)
=1/2sin2x+1/2cos2x+1/2
=√2/2(√2/2sin2x+√2/2cos2x)+1/2
=√2/2sin(2x+π/4)+1/2
The minimum positive period of F (x) is t = 2 π / 2 = π
How much is 180 minus one third minus one half minus three fifths?
With score 178 13 / 30
12. Ask: Please list the detailed formula
F (SiNx / 2) = cos (17x) find f (cosx / 2)
F(COS(X/2))=F(SIN(PI/2-X/2))=F(SIN((PI-X)/2))
At this time, the original topic is reached
F(SIN((PI-X)/2)=COS(17*(PI-X))=-COS(X)
15 out of 42 equals 1 out of 42 plus 1 out of 42 plus 1 out of 42?
15/42=1/6+1/7+1/21
15 / 42 = 1 / 14 + 1 / 7 + 1 / 7
The proof of trigonometric identity should help 1 + cosx / 1-cosx - 1-cosx / 1 + cos = 4 / SiNx TaNx
1 +cosx/ 1-cosx- 1-cosx/1+cos=(1 +cosx)^2/ (1-cos^2x)- (1-cosx)^2/(1-cos^2x)=[(1 +cosx)^2- (1-cosx)^2]/(1-cos^2x)=4cosX/sin^2x=4/sinX*(sinX/cosX)=4/sinx tanx
(1+cosx)/(1-cosx)-(1-cosx)/(1+cosx)
=[(1+cosx)^2-(1-cosx)^2]/[(1+cosx)(1-cosx)]
=[1+2cosx+(cosx)^2-1+2cosx-(cosx)^2]/[1-(cosx)^2]
=4cosx/(sinx)^2
=4/(sinxtanx)
You don't write this topic clearly... For example, is cos X / 1 cos (1 / x) or 1 / cos x??? I'm happy to help you with...
What percentage is eight out of forty-two
8 / 42 = 4 / 21 = 19.05%
About 19%
nineteen percent
19%
F (SiNx) = (cosx) ∧ 2 + SiNx + 5, find f (x)
f（x）=-x^2+x+6
Three fifths is divided by forty-five is three to three=（
Three fifths equals () divided by 45 equals () three to () = ()% = () fill in decimal = () fold
27 3 5 60 6
X belongs to (0, π / 2). Find the minimum value of [(SiNx) 2 + 1 / (SiNx) 2] [(cosx) 2 + 1 / (cosx) 2]
[[(sinx)2+1/(sinX)2][(cosX)2+1/(cosX)]=sin²xcos²x +cos²x/sin²x +sin²x/cos²x +1/(sin²xcos²x)=sin²xcos²x + [(cos²x)²+(sin²x)²]/(sin&...