In a ` A B C ,\ A=pi/3\ a n d\ b : c=2: 3.` If `tanalpha=(sqrt(3))/5,\ o

In a Delta ABC,A=(pi)/(3) and b:c=2:3. If tan alpha=(sqrt(3))/(5),0

In triangle ABC, angleA=pi/3 and b:c =2:3, tan theta=sqrt3/5, 0 lt theta lt pi/2 then

In a A B C ,A=(2pi)/3,b-c=3sqrt(3)c m and area ( A B C)=(9sqrt(3))/2c m^2dot then ' a ' is 6c m b. 9c m c.18c m d. none of these

/_A=(pi)/(6) and b:c=2:sqrt(3), find /_B

In triangle A B C , if b=3,\ c=4\ a n d\ /_B=pi/3, then number of such triangle is 1 (b) 2 (c) 0 (d) infinite

If ' O ' is the circum centre of the A B C and R_1,\ R_2,\ R_3 are the radii of the circumcircle of triangle O B C ,\ O C A\ a n d\ O A B respectively then a/(R_1)+b/(R_2)+c/(R_3) has the value equal to (a b c)/(2R^3) (b) (R^3)/(a b c) (c) (4)/(R^2) (d) (a b c)/(R^3)

If A >0,\ B >0\ a n d\ A+B=\ pi/6 , then the minimum value of t a n A+t a n B is: 2-sqrt(3) b. 4-2sqrt(3) c. sqrt(3)-sqrt(2) d. 2/(sqrt(3))

If A+B=pi/3a n d cos A+cos B=1, t h e n- a.cos(A-B)=1//3 b. |cos A-cos B| =sqrt(2/3) c.cos(A-B)= -1/3 d. |cos A-cos B|=1/(2sqrt(3))

If A>0,B>0, and A+B=(pi)/(3), then the maximum value of tan A tan B is (1)/(sqrt(3))(b)(1)/(3) (c) 3(d) sqrt(3)

If A+B+C = pi and A, B, C are angle of /_\ ; then show sinA + sinB + sinC < (3 sqrt(3))/2 .