Let U be the set of all triangles in a plane. If A is the set of all triangles with at least one angle different from 60°, what is A' ?
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A plane contains points A and B withAB=1LET S be the union of all disk of radius1 in the plane that cover AB Area of S=?
please check the question.
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Sides of two similar triangles are in the ratio 4 : 9. Areas of these triangles are in the ratio
Solution: If two triangles are similar to each other, then the ratio of the areas of these triangles will be equal to the square of the ratio of the corresponding sides...
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A solid cylinder rolls up an inclined plane of angle of inclination 30°. At the bottom of the inclined plane the centre of mass of the cylinder
Inclination angle (∅)= 30° Speed of centre of mass (v)= 5m/s (A) acceleration of the cylinder rolling up the inclined plane is Given by the formula, a = -gsin∅/(1 + k²/r²) Where K = radius...
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Given 5 different green dyes ,four different blue dyes and three different red dyes,the number of combinations of dyes which can be chosen
Green dyes =5 Blue dyes =4 Red dyes =3 The no of ways of choosing of at least one green and one blue is =(25−1)×(24−1)×23 ⇒(32−1)×(16−1)×8 ⇒31×15×8 ⇒3720
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From 5 different green balls, four different blue balls and three different red balls, how many combinations of balls can be chosen
Total combination of balls = 212 Combination of balls with no green balls = 27 Combination of balls with no blue balls = 28 Combination of balls with no blue balls and no green...
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Can a polygon have for its faces: (i) 3 triangles (ii) 4 triangles (iii) a square and four triangles
(i) No, a polyhedron cannot have 3 triangles for its faces. (ii) Yes, a polyhedron can have four triangles which is known as pyramid on triangular base. (iii) Yes, a polyhedron has...
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Harpreet tosses two different coins simultaneously (say, one is of Rs.1 and other of Rs.2). What is the probability that she gets at least one head?
When two coins are tossed simultaneously, the possible outcomes are(H, H),(H, T),(T, H),(T, T) which are all equally likely. Here (H, H) means head up on the first coin (say on Rs.1) and...
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Harpreet tosses two different coins simultaneously (say, one is of Rs.1 and other of Rs.2). What is the probability that she gets at least one head?
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Write the relationship between angle of incidence ‘i’, angle of prism ‘A’ and angle of minimum deviation for a triangular prism.
Angle of incidence i = (A + δm)/2 Concept : i + e = A + δ But at minimum angle of deviation, i = e
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Let T be the line passing through the points P(-2, 7) and Q(2, -5). Let F1 be the set of all pairs of circles (S1, S2)
Answer: D Solution: Locus of M is circle center (0, 1) and radius √40 , excluding points P and Q =>x2 + y2 – 2y = 39 excluding points P and Q So, (–2,...
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