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SRISIRI PUBLICATION-PROPERTIES OF TRIANGLES-LAQ ,SAQ,VSAQ (2DHARDQ) (3DMIS.Q)
- If the lengths of the sides of a triangle are 3 , 4,5 find the circumr...
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- If the sides of a triangle are 13,14,15 , then find circum diameter .
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- If a=6 , b=5 ,c=9 then angle A .
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- If a =2 , b = 3 c=4 then find cos A .
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- Show that sum(b+c)cosA=2s Prove that (b+c)cosA+(c+a)cosB+(a+b)cosC=a+b...
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- If (a+b+c) (b+c-a) = 3bc then find angle A .
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- In DeltaABC prove that (b-c)^(2)cos^(2).(A)/(2)+(b+c)^(2)sin^(2).(A)/(...
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- If tan.(C-A)/(2)=k cot.(B)/(2) then find k .
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- Show that (c-bcosA)/(b-c"cos"A)=(cosB)/(cosC)
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- In DeltaABC , " find " b cos ^(2).(C)/(2)+c cos^(2).(B)/(2)
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- If cot.(A)/(2)=(b+c)/(a) find angle B
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- Show that b^(2)sin2C+c^(2)sin2B=2bcsinA
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- In DeltaABC show that (b^(2)-c^(2))/(a^(2))=(sin(B-C))/(sin(B+C))
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- Show that a cosA+bcosB+c"cos"C=(2Delta)/(R)
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- Show that a^(2)sin2C+c^(2)sin2A=4Delta
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- In DeltaABC , prove that (1)/(r(1))+(1)/(r(2))+(1)/(r(3))=(1)/(r).
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- Show that rr(1)r(2)r(3)=Delta^(2)
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- If A=90^(@), " show that " 2(r+R)=b+c
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- If s = 12 and A=90^(@) then find the value of r(1)
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- If a = 18 , b=24 , c=30 , find r(1) .
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