Find sin2x, cos 2x, and tan 2x if tanx= and X terminates in quadrant II. sin 2x cos 2x tan 2x 2/3

Q: Find sin 5pai/6.

A:

Q: Let sinA = 7/25 and sinB = -3/5 Solve sin(A+B)

A:

Q: if cosx=tany,cosy=tanz,cosz=tanx ,then find sinx

A: Given,

Q: Verify the identity: (cos 4x - cos 2x)/(sin 2x - sin 4x) = tan 3x

A:

Q: epresent 3 sin x + 6 cos x in a form A sin(x + p), use radians for p.

A:

Q: Find sin 5, given that sin x = 2 i and 0<x<5.

A: Here  sin x=14⇒cos x=1-sin2x              ⇒cos x=1-116              ⇒cos x=154 Now, sin2x2=1- cos x2…

Q: If z = tan X 2 then sin x =

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Q: Simplify. cos(-4x) · cos 2x – sin(-4x) · sin 2x cos(-2x_ sin(-6x) cos(-3x) cos(-x)

A: Using Cos(A+B) formula

Q: Verify identity cos2 x - sin2 x = 2 cos2 x - 1.

A: cos2x -sin2x=2cos2x-1

Q: 9. Solve the equation for x if 0 < x < 27. 2 cos x + tan x - sec x = 0 VI

A: The correct option is option A. Use the trigonometric ratios and identities to rearrange the given…

Q: Find sec2x if sin x = 6/10 and sec x < 0

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Q: Show that sin 2x Þ 2 sin x by substituting 30 degree for x and then simplifying both sides.

A: To prove: sin2x≠2sinx For x=30°

Q: If sin 5x + 22 = cos 4x + 14 find x

A: Use the concept of  maximum minimum values od Sine and cosine functions.

Q: tan x= -4 and sin x is negative

A: Here tanx=-4we know trigonometric identity,sec2x=1+tan2xsec x=±1+tan2xsec x=±1+(-4)2sec…