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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 70051. |
A) -1818) 1816 Express the no. in standardform 0.000 00085(C) 85 x107 |
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Answer» 85×10^-8 |
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| 70052. |
Question No 5Let f (z) 8z36z2z1, then9(A) f(z)-Ohas no root in (0.1(B) f (z)- Ohas at least one rootin (0. 1(C)广(c) 0 for allee (0,1)(D) f (z)=0has no root in [0.1] |
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Answer» option B is correct.... see the graph below |
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| 70053. |
a^{x}=b^{y}=c^{z} \text { and } b^{2}=a c, \text { then show that } y=\frac{2 z x}{z+x} |
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| 70054. |
1./ In an isosceles triangle ABC, with AB = AC, the bisectors of L B and LC intersecteach other at O. Join A to Q. Show that:(i) OB OC(ii) AO bisects LA |
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| 70055. |
5. (3) येथे ? > 15625 झाडे, 7२ न 8% वाढ, पल 3 वर्ष... & न? |
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| 70056. |
15625 is the cube U704+that it could be a perfect cube |
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Answer» 704 = 2 x 2 x 2 x 2 x 2 x 2 x 11704 needs to be divided by 11 to become a perfect cube.64 cube of 4 |
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| 70057. |
EXAMPLE 1.Simplify:(0 8 x (-13) +8 x 9 |
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Answer» 8 × (-13) + 8 × 9 = 8(-13 + 9) = 8 × -4 = -32 |
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| 70058. |
7./ The cost of carpeting a room 15 m lo19200. Find the width of the room.19200. Find th5 m long with a carpet of width75cmat8opermete(c5o fthe total cost |
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| 70059. |
IV) DI Juvu3. Simplify the following:(1) 7 - 16 - 12 + (5 +9x2 - 19)} |
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Answer» 7-{16-12÷(5+9×2-19)}= 7-{16-12÷(5+18-19)}= 7-{16-12÷(23-19)}= 7-{16-12÷4}= 7-{16-3}= 7-13= -6 -6 is right answer...... -6....,,,,........... 12 12 12 12 12 12 12 12 12 -6 is the right answer of the following -6 is the right answer of the following |
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| 70060. |
26. If-TS= 8x-1 and x > 0 , then x =1.5(a) 4(b) 2/2(c) 4(d) 64 |
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Answer» where comes power 2 |
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| 70061. |
Simplify i^{18}-3 i^{7}+i^{2}\left(1+i^{4}\right)(-i)^{26} |
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| 70062. |
1. निम्नलिखित का मान निकालिए:sin 18° 5 tan 26°A ८०४ 72% दि ८0 हवन |
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Answer» i) sin 18°----------cos 72° sin ( 90 - 72)------------------ cos 72 cos 72-----------cos 72 1 |
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| 70063. |
19. Simplify the following:(a) 75 = (3x 8 + 1) + 7 (5-3)(b) 3.9 - 1.3 -2.1 x 1.3 + 7.2 = 3.6(c) 3.06 = 3 x 3 - [0.8 + {6.5 – (5.5 = 1.1)}] |
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Answer» 75 ÷ (3 × 8 + 1) + 7 × (5 - 3) = 75 ÷ (25) + 14 = 173.9 ÷ 1.3 - 2.1 × 1.3 + 7.2 ÷ 3.6 = 3 - 2.73 + 2 = 2.273.06 ÷ 3 × 3 - [0.8 + {6.5 - (5.5 ÷ 1.1)}] = 1.02 × 3 - 2.3 = 0.76 |
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| 70064. |
(11)AObisects Ain AABC,AD is the perpendicular bisector ol BC(see Fig. 7.30). Show that Δ ABC is an isoscelestriangle in which AB =AC.Fig. 7.30 |
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| 70065. |
The dimensions of a cuboid in cm are30 x 18 x10 Find its volume. |
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Answer» Volume of a cuboid = l x b x h = 30 x 18 x 10 = 5400 cubic units. |
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| 70066. |
1. In an isosceles triangle ABC, with AB AC, the bisectors of D B andC intersecteach other at O. Join A to O. Show that:(ii) AO bisects ZA |
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| 70067. |
1. In an isosceles triangle ABC, with AB AC, the bisectors of 2 B and Z C interseach other at O. Join A to O. Show that:(ii) AO bisects<A |
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Answer» thanks mam or sir |
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| 70068. |
In Δ ABC, right-angled at B, AB 24 cm, BCDetermine (i) sin A, cos A (ii) sin C, cos7 cm.1. |
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Answer» In Δ ABC, right-angled at B Using Pythagoras theorem AC² = AB²+BC² AC² = 576 + 49 = 625 AC = √635 AC = ±25 Now (i)In a right angle triangle ABC where B=90° , Sin A = = 7/25 CosA = = 24/25 (ii) Sin C = = 24/25 Cos C = = 7/25 |
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| 70069. |
In fig O is the centre of acircle, chord PQ chord RSIf ZPOR 70°and (arc RS) 80, find1) m(arc PR) 2) m(arc QS)3) m(arc QSR) |
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| 70070. |
, The cost of carpeting a room 15 m long with a carpet of width 75 cm at rs.80 per meter is rs.19200. Find the width of the room. |
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| 70071. |
the monthly salary of a man is Rs 15625. if he gets an increase of 12%. find his new salary |
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| 70072. |
Draw the graph of following linear equation in two variables.xty 4.29.hm im and ?m respectively. |
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Answer» Given is graph of x + y = 4 thank you😊☺️ |
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| 70073. |
Example 19. The centroid of a triangle ABC is at the point (1, 1, 1). If the coordinates of A and Bare (3,-5, 7) and (-1, 7, -6) respectively, find the coordinates of the point C. |
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| 70074. |
Express the following linear Equation in the form ax+by+c-0and write a, b and c : 2x + 3y-935 |
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Answer» Given equation2x + 3y = 9.35 Equation in the form ax + by + c = 02x + 3y - 9.35 = 0 Therefore,Value of a = 2, b = 3, c = - 9.35 |
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| 70075. |
The measure of one of the vertically opposite angles is 45° less han four times the measureof the other angle of the pair. Find the measure of both the angles6. |
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Answer» Vertically opposite angles are equal, by property. Let the two angles be x and y. We can form two equations.= x = y ---- 1= x = 45 - 4 y---- 2Substitute 1 in 2. = x = 45 - 4 x = 5 x = 45= x = 9.Hence, y is also = 9. thank you |
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| 70076. |
\begin{array}{c}{\text { Find the area of the curve: }} \\ {x=a \cos ^{3} t, y=b \sin ^{3} t}\end{array} |
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| 70077. |
Find the equation of tangent to the curve x²/a²+y²/b²=1at (x1, y1) |
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Answer» can u try to explain briefly hlo he please help by solving this question by diffraction method |
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| 70078. |
xeAP 16,18 TS 126.If the tangent at a point on the curve xin A,B then show that the length AB is a constant.at a point on the curve x2/3+ y2/3-a2/3 intersects the coordinate ain then |
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Answer» √2 is irrational no. |
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| 70079. |
1Example 19 Simplify: (2a + 3b)3-(2a-3b)3 |
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| 70080. |
Find x.Find x.40OOOO |
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Answer» 2x + 40 = 180,; 2x=180-40=120; x=120/x=60 2x = 40; x=40/2=20 |
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| 70081. |
*)**-)"find the value of x., find the value of x. |
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| 70082. |
6. In AABC, AB BC- CA and zOCB-ZOBA. Prove that AO bisects CAB. |
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| 70083. |
1AAB, right-angled at B, AB 24 cm, BC-7 cm. Determine:sin A, cos A |
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| 70084. |
a man buy a book for Rs 80 and sells it for Rs 100 his gain percent is ............. |
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Answer» Gain= 100-80=₹20 Gain percent= (20/100)*100=20% |
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| 70085. |
VB जाप्र b o शान निर्णय काका । |
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| 70086. |
is (2, ½) a solution of linear equation, x-4y? Justify |
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Answer» yes , on putting the value of x and y in equation 2= 4*(1/2) = 2 , both are equal ✓ |
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| 70087. |
Draw the graph of the following linear equation,x -y2. |
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| 70088. |
Q15. Draw the graph of linear equation x + 2y = 8 at which points it cuts.(i) x-axis(ii) y-axis |
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Answer» i) cuts x axis at 8 ii) cuts y axis at 4 |
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| 70089. |
Theorem 6.1: If two lines intersect each other, then the vertically oppositeangles are equal. |
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| 70090. |
The equation of the normal at t= pi /2 to thecurve x=2sint, y = 2 cost is |
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| 70091. |
Example 19 Find the equations of the tangent and normal to the curve x^{\frac{2}{3}}+y^{\frac{2}{3}}=2 |
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| 70092. |
Find the area bounded by the curve x 4y and the line -4y-2 |
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| 70093. |
maximum point of curveF(x)=4x-x^2(A)x=2 (B) x=4 ( C) x=0 (D)x=0,2 |
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| 70094. |
.2 hours and 4 minutes into seconds. |
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Answer» 2 hours 4 minutes=(60*2)+4 minutes=120+4 minutes=124 minutes=124*60 seconds=7440 seconds thanks for this |
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| 70095. |
XFind the slope of the tangent to the curve y=-, x* 2 atx. |
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| 70096. |
DIFFERENTIATIONeshould observe carefully the application of the functionhus, if z-: ф(u), where u is a function of x and y, thenoz z uaxe of w.. to x is given3x 2ythe partial derivative f, and fy, of u = 2 + 23x 2y Quox |
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Answer» not interested answer plz give simple answer 2x(z-x-y) and 2y(z-y-x) ok work it out ok 23/45 |
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| 70097. |
Draw the graphs of y = x and y = -x in the samegraph. Also, find the coordinates of a point wherethe two lines intersect. |
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Answer» xvhvnlkclughkfv57884iIig We can rewritey=xinto the general form of a slope-intercept equationy=mx+b, withm=1,b=0:y=1x+0This gives us the y-intercept of 0 (and so we have the point(0,0)) and slope of 1 - which means that for every point we move to the right |
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| 70098. |
Find the class mark of class 32-362) Observe Ven diagram and write A u Band AaB.and An10412 |
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Answer» A U B={2,6,4,8,10,1,3,7,5}A ∩ B ={8,10} |
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| 70099. |
A MAN BUY rs 800 for fan and his less 5%on fan .what his c.p. |
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Answer» SP = ₹800 let CP be x Discount = 5% So, we get an equation x - 5% of x = 800 x - 5/100 × x = 800 x - x/20 = 800 19x/20 = 800 x = (800×20)/19 x = 842.10 So CP is 842.10 |
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| 70100. |
ŕ¤ŕ¤ż e< ST TR e |
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Answer» 7/12 - 29/12 + 47/9 + 11/18 = -22/12 + 94/18 + 11/18 = -11/6 + 105/18 = -11/6 + 35/6 = 24/6 = 4 Like my answer if you find it useful |
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