Geometry – Page 233

Question-149068

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Question Number 149068 by Tawa11 last updated on 02/Aug/21 Answered by mr W last updated on 03/Aug/21 Commented by mr W last updated on 02/Aug/21…

Question-149031

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Question Number 149031 by puissant last updated on 02/Aug/21 Answered by EDWIN88 last updated on 02/Aug/21 $\Rightarrow \frac{1 + \cos 2 x + 1 + \cos 4 x + 1 + \cos 6 x}{2} = 1$ $\Rightarrow \cos 6 x + \cos 4 x + \cos 2 x = - 1$ $\Rightarrow 2 \cos 4 x \cos 2 x + \cos 4 x = - 1$ $\Rightarrow \cos 4 x (2 \cos 2 x + 1) = - 1$ $$\Rightarrow\left(\mathrm{2cos}\:^{\mathrm{2}}…

Question-17948

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Question Number 17948 by b.e.h.i.8.3.417@gmail.com last updated on 12/Jul/17 Commented by mrW1 last updated on 12/Jul/17 $area of Δ ABC = S = \frac{1}{2} {ah}_{a}$ $\Rightarrow \frac{1}{h_{a}} = \frac{1}{2 S} a = ka$ $similarly$ $$\Rightarrow\frac{\mathrm{1}}{\mathrm{h}_{\mathrm{b}} }=\mathrm{kb}\:…

secxdx-

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Question Number 17939 by ibraheem160 last updated on 12/Jul/17 $\int s e c x d x$ Commented by prakash jain last updated on 12/Jul/17 $\sec x = \frac{\sec x (\sec x + \tan x)}{\sec x + \tan x}$ $\int \sec x d x = \int \frac{d (\sec x + \tan x)}{\sec x + \tan x}$ …

Ball-A-is-dropped-from-the-top-of-a-building-At-the-same-instant-ball-B-is-thrown-vertically-upwards-from-the-ground-When-the-ball-collide-they-are-moving-in-opposite-directions-and-the-speed-of-A

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Question Number 17935 by Rishabh#1 last updated on 12/Jul/17 $Ball A is dropped from the top of a building .$ $At the same instant ball B is thrown$ $vertically upwards from the ground .$ $When the ball collide, they are moving in$ $opposite directions and the speed of A (u)$ $is twice the speed of B . The relative$ $velocity of the ball just before collision$ $$\mathrm{and}\:\mathrm{relative}\:\mathrm{acceleration}\:\mathrm{between}\:\mathrm{them} \…

if-M-is-a-point-on-the-line-y-x-and-points-P-0-1-Q-2-0-are-such-that-PM-PQ-is-minimum-then-find-P-

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Question Number 148993 by gsk2684 last updated on 02/Aug/21 $i f M i s a p o i n t o n t h e l i n e y = x a n d$ $p o i n t s P (0, 1), Q (2, 0) a r e s u c h t h a t$ $P M + P Q i s m i n i m u m t h e n f i n d P$ Commented by mr W last updated on 02/Aug/21 $${i}\:{think}\:{the}\:{question}\:{should}\:{be}…

Question-83471

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Question Number 83471 by mr W last updated on 02/Mar/20 Commented by mr W last updated on 02/Mar/20 $T h e d i s t a n c e s f r o m a p o i n t M t o t h e$ $v e r t i c e s o f a g i v e n t r i a n g l e w i t h$ $s i d e l e n g t h e s a, b, c a r e p, q, r$ $${respectively}.…

The-largest-value-of-k-for-which-the-circle-x-2-y-2-k-2-lies-completely-in-the-interior-of-the-parabola-y-2-4x-16-

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Question Number 148991 by gsk2684 last updated on 02/Aug/21 $T h e l a r g e s t v a l u e o f k f o r w h i c h$ $t h e c i r c l e x^{2} + y^{2} = k^{2} l i e s c o m p l e t e l y$ $i n t h e i n t e r i o r o f t h e p a r a b o l a$ $y^{2} = 4 x + 16 ?$ Answered by mr…

Question-17901

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Question Number 17901 by chux last updated on 12/Jul/17 Commented by chux last updated on 12/Jul/17 $find the radius of the big and$ $small circle$ Commented by chux last…

Question-17886

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Question Number 17886 by b.e.h.i.8.3.417@gmail.com last updated on 11/Jul/17 Commented by b.e.h.i.8.3.417@gmail.com last updated on 12/Jul/17 $1) c i r c l e r a d i u s = R$ $2) a c u t e a n g l e b e t w e e n c h o r d s : A B, C D = φ$ $${find}:\:{AP}^{\mathrm{2}} +{BP}^{\mathrm{2}} +{CP}^{\mathrm{2}} +{DP}^{\mathrm{2}} .…

Category: Geometry