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PATHFINDER-TRIGONOMETRIC RATIOS AND IDENTITIES-QUESTION BANK
- Show that sin(pi/n)+sin (3pi/n)+sin (5pi/n)+….n terms=0
04:21
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- .(tantheta +sectheta-1)/(tantheta -sectheta+1)=
03:49
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- If sectheta=sqrt2 and (3pi)/2ltthetalt2pi. Then the value of (1+tanthe...
03:00
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- (cosec(2pi+theta)cos(2pi+theta)tan(pi/2+theta))/(sec(pi/2+theta)costhe...
01:19
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- In triangle ABC, right angled at C, (tanA+tanB) equal to
02:28
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- If sintheta and costheta are the roots of the equation ax^2-bx+c=0, th...
04:11
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- (cosalpha+cosbeta)^2+(sinalpha+sinbeta)^2=
03:05
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- If tanbeta=(2sinalphasingamma)/sin(alpha+gamma), then cotalpha,cotbeta...
02:53
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- If(1+tan1^@)(1+tan2^@)....(1+tan45^@)=2^n, then the value of n is
04:13
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- If alpha+beta =(pi/2) and beta+gamma=alpha, then the tanalpha equals:
02:17
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- If sec(theta+alpha)+sec(theta-alpha)=2/costheta. then cos^2theta is eq...
04:58
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- If tanA=(1-cosB)/sinB, then
01:18
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- If m and M be the minimum and maximum value of 10 cos^2x-6sinxcosx+2si...
03:47
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- 3(sinx-cosx)^4+6(sinx+cosx)^2+4(sin^6x+cos^6x) is equal to
04:50
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- If tanx=(b/a), then acos2x+bsin2x is equal to
02:50
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- tan9^@-tan27^@-tan63^@+tan81^@ is equal to
07:41
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- (1+sintheta-costheta)/(1+sintheta+costheta)=
03:52
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- The number of ordered pairs (alpha,beta), where alpha,betain(-pi,pi) s...
03:12
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- The number of solutions of the equation x/100=sinx is
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- If mtan(theta-30^@)=ntan(theta+120^@), then cos2theta is equal to
06:01
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