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What is the solution to cos2 plus cos2tan2 equals 1?
cos2 + cos2tan2 = cos2 + cos2*sin2/cos2 = cos2 + sin2 which is identically equal to 1. So the solution is all angles.
Sec²x - tan²x equals?
sec2(x) - tan2(x)= 1/cos2(x) - sin2(x)/cos2(x)= (1 - sin2(x)) / cos2(x)= cos2(x) / cos2(x)= 1
How does 1-sin squared x times 1 plus tan suared x equals 1?
Use these identities: sin2(x) + cos2(x) = 1, and tan(x) = sin(x)/cos(x) For clarity, the functions are written here without their arguments (the "of x" part). (1 - sin2) = cos2 (1 + tan2) = (1 + sin2/cos2) = (cos2+sin2) / cos2 = 1/cos2 Multiply them: (cos2) times (1/cos2) = 1'QED'
How would you solve and show work for cos2 theta if cos squared theta equals 1 and theta is in the 4th quadrant?
cos2(theta) = 1 cos2(theta) + sin2(theta) = 1 so sin2(theta) = 0 cos(2*theta) = cos2(theta) - sin2(theta) = 1 - 0 = 1
In maths does one minus two sine squared an equal cos squared a minus sine squared a 1-2sin2an equals sin2a-cos2a?
No.Remember: sin2 + cos2 = 1So, in place of (1 - 2 sin2) we can write (sin2 + cos2 - 2 sin2).Massage that around slightly: (sin2 + cos2 - 2 sin2) = cos2 - sin2That's not equal to (sin2 - cos2), which is the original question we were asked.
What is the equation that equals pi?
I think it is 3.14 that equals to pi when u solve it
How much is a pi?
A pi equals 3.1415326535897932384626433832795028841971693993751058209749445923
What is diameter of a 130mm circumferance?
Circumference equals Diameter times Pi, OR Diameter equals (Circumference)/(Pi). In this case, Diameter equals (130mm)/(Pi or 3.14159) equals 41.38mm
How does sec squared x equals 1 plus tan squared x?
Original Equationsec2(x) = 1 + tan2(x)Leave the left side assec2(x) and for the proof, try to make the right side equal the left side.We know tan = sin/cos1 + tan2(x) = 1 + sin2(x)/cos2(x)Rewrite the 1 in terms of cos2(x)1 + sin2(x)/cos2(x) = cos2(x)/cos2(x) + sin2(x)/cos2(x)Simplify, now that the denominators have the same termscos2(x)/cos2(x) + sin2(x)/cos2(x) = [ cos2(x) + sin2(x) ] / cos2(x)Use the trig. identity: cos2(x) + sin2(x) = 1[ cos2(x) + sin2(x) ] / cos2(x) = 1 / cos2(x)Remember 1/cosine is equal to secant.\1 / cos2(x) = sec2(x)Recall, the left side the equation was: sec2(x)The right side (we just solved for is): sec2(x)sec2(x) = sec2(x)Left side = right side, Q.E.D.
How To find Pi?
Pi always equals 3.14...
What is sin squared minus 1?
-cos2(x)1 = sin2(x) +cos2(x)1 - cos2(x) = sin2(x)-cos2(x) = sin2(x) - 1
Sin theta equals zero answer in radians in terms of pi?
Theta equals 0 or pi.
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