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NCERT-TRIGONOMETRIC FUNCTIONS-SOLVED EXAMPLES
- If cotx=-5/(12), lies in second quadrant, find the values of other fi...
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- The minute hand of a watch is 1.5 cm long. How far does its tip move ...
02:27
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- If the arcs of the same lengths in two circles subtend angles 65 ^cir...
02:10
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- Convert 6 radians into degree measure.
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- Find the radius of the circle in which a central angle of 60^@interce...
01:31
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- Convert 40^circ 20^(prime)into radian measure.
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- Find the principal solution of the equation tanx=-1/(sqrt(3)).
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- Find the principal solution of the equation sinx=(sqrt(3))/2.
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- Find the value of sin\ 15^circ.
01:10
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- Prove that 3sinpi/6secpi/3-4sin(5pi)/6cotpi/4=1
01:33
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- Prove that (sin(x+y))/(sin(x-y))=(tanx+tany)/(tanx-tany)
02:03
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- Find the value of tan\ (13pi)/(12).
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- Prove that cos(pi/4+x)+cos(pi/4-x)=sqrt(2)cosx.
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- Show that tan 3x tan 2x tan x = tan 3x - tan 2x - tan x.
01:47
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- Prove that (sin5x-2sin3x+sinx)/(cos5x-cosx)=tanx
02:29
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- Prove that (cos7x+cos5x)/(sin7x-sin5x)=cotx.
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- In triangle ABC , prove that tan (B-C)/2 =[( b-c) /(b+c )] cot A/2 , ...
03:19
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- The angle of elevation of to be top point P of the vertical tower PQ o...
09:20
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- Prove that asin(B−C)+bsin(C−A)+csin(A−B)=0
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- In triangle ABC, prove thattan(B-C)/2=(b-c)/(b+c)cotA/2tan(C-A)/2=(c-a...
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