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If you mean x/75=y/45=z/15 Then letx/75=y/45=z/15 =k So.x=75k y=45k z=15k Pu the value in the options to get the correct option satisfying the equality...
right ans is 6 if we solve S2N/SN=3 it gives relation as 2a=(n+1)d now take ratio of S3N/SN and put 2a=(n+1)d you will get 6
1/1^2 + 1/2^2 + 1/3^2 + ........ upto infinity = pi^n ...(1)...(n=1/6 or whatever, not mentioned in the question) Let [1/1^2 + 1/3^2 + 1/5^2 + ........ upto infinity]= S o ...(2) (1)-(2)=1/2^2 + 1/4^2...
Hi student, WE have 10 counters of each colour and 7 different colours. So in all = 70 counters Now we have to choose 10 counters Assume there are 10 blank spaces and you want to fill all 10 with some...
Hii Use the sridharacharya method of finding roots you will get the answer. And you can easily reduce it to linear factors. Thanks. . .. . . . .. .
5x 2 +x-45=0 D=b 2 -4ac>0 So roots are real. Use the quadratic formula to find the value of x. x= [-b+(b 2 -4ac) 1/2 ]/2a;[-b-(b 2 -4ac) 1/2 ]/2a...
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Let’s name the works A, B, C, D A-------> 1 st work of 3 volumes B-------> 2nd work of 3 volumes C-------->1st work of 2 volumes D-------->2nd work of 2 volumes in A, we can arrange 3 volumes in 3!...
In mathematics, a quadric, or quadric surface, is any D-dimensional hypersurface in (D + 1)-dimensional space defined as the locus of zeros of a quadratic polynomial. In coordinates x1, x2, ..., xD+1,...
Check for n=1...(True) Let it be true for n=k i.e. 1 2 +3 2 +5 2 ….+(2k-1) 2 = k(4k 2 -1)/3 ...(i) To prove: It is true for n=k+1 Soln. 1 2 +3 2 +5 2 ….+[2(k+1)-1] 2 = k(4k 2 -1)/3+...
S1 is the frame of moving body, s2 is any other frame
float on earth’s surface
dr’s (1,0,0) dc’s (1,0,0) sum = 1
let x be the no. of 5 Rs coins let y be the no. of 0.5 Rs coins Given, x+y = 150 and 5x + 0.5 y = 300 =====>10x + y = 600 x + y = 150 on subracting we get 9x + 0 = 450 ==> x= 50 ==> y= 100 Therefore...
Please explain the question. Its not very clear Thanks,...
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Hi student, I think norm is the length of a point from the origin. whereas the modulus is more of a distance from one point to another point. norm is just a specific case of the distance from a point...
Take the LCM of the denominator and keep it outside of the series. Now from the nth term of the series, simplify and get the 2 GP’s in addition. Solve for the sum of the GP to get the final...
You may opt S.K. GOYAL’s JEE maths in which Algebra topic is subadded. Either you can opt for Anurag Trivedi’s Maths books of Algebra... Good...
Consider 2 nd root of unity x 2 -1=0 x=+1,-1 Now, forming an equation using these roots (x-1)(x+1) =x 2 -1 Now, Consider 4 th root of unity x 4 -1=0 (x 2 +1)(x 2 -1)=0 x= +i,-i,+1,-1 Now, if an...
Transform the arg [(z-1)/(z+1)]=pi/3 into (z-1)/(z+1)=tan pi/3 Solve this eqn for z.. It will give a linear eqn. solution....
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Solution:
Hii from X-1/X = 3 you can find out that X2-1 = 3X and put this value in X/(X2-X-1) you will get the answer. Thanks. . .. . ….… . . . . . . . . .. .
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