question-14-find-the-real-numbers-x-and-y-if-x%e2%88%92iy35i-is-the-conjugate-of-%e2%88%926%e2%88%9224i 03:02

Question 14 Find the real numbers x and y if (x−iy)(3+5i) is the conjugate of −6−24i

NCERT Miscellaneous Exercise Question 14. Find the real numbers x and y if {\displaystyle (x-iy)(3+5i) } is the conjugate of {\displaystyle -6-24i } .

example-12-find-the-conjugate 05:43

Example 12 Find the conjugate

NCERT Chapter 5 Complex Numbers Example 12 Find the conjugate of {\displaystyle \frac{(3-2i)(2+3i)}{(1+2i)(2-i)} }

find-the-modulus-and-the-arguments-of-each-of-the-complex-numbers-in 04:43

Find the modulus and the arguments of each of the complex numbers in

NCERT Exercise 5.2 Find the modulus and the arguments of each of the complex numbers in Exercises 1 to 2. Question - 1: {\displaystyle z=-1-i \sqrt{3} } .

draw-appropriate-venn-diagram-for-each-of-the-following 06:33

Draw appropriate Venn diagram for each of the following

NCERT Exercise 1.5 Question 5: Draw appropriate Venn diagram for each of the following:
(i) (A ∪ B)′,
(ii) A′ ∩ B′,
(iii)  (A ∩ B)′,
(iv) A′ ∪ B′

sequences-and-series-ncert-example-23-class-11-maths 08:27

Sequences and Series NCERT Example 23 Class 11 Maths

Sequences and Series Class 11 Maths Example 23: If a, b, c, d and p are different real numbers such that {\displaystyle (a^2+b^2+c^2)p^2-2(ab+bc+cd)p+(b^2+c^2+d^2) \le 0 } , then show that a, b, c and d are in G.P.

sequences-and-series-ncert-exercise-9-3-question-24-class-11-maths 06:49

Sequences and Series NCERT Exercise 9.3 Question 24 Class 11 Maths

Sequences and Series NCERT Exercise 9.3 Question 24 Class 11 Maths : Show that the ratio of the sum of first n terms of a G.P. to the sum of terms from {\displaystyle (n+1)^{th} \text{ to } (2n)^{th} } term is {\displaystyle \frac{1}{r^n} } .

ncert-exemplar-class-11-maths-chapter-3-trigonometry-functions-example-4 02:43

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 4

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 4 If θ lies in the second quadrant, then show that { \displaystyle \sqrt{\frac{1-\sin\theta}{1+\sin\theta}} + \sqrt{\frac{1+\sin\theta}{1-\sin\theta}} = -2 \sec\theta }

ncert-exemplar-class-11-maths-chapter-3-trigonometry-functions-example-3 10:54

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 3

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 3 Find the value of { \displaystyle \sqrt{3} \text{cosec} 20^\circ – \sec 20^\circ }

ncert-exemplar-class-11-maths-chapter-3-trigonometry-functions-example-2 08:21

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 2

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 2 If { \displaystyle A = cos^2 θ + sin^4 θ } for all values of θ, then prove that { \displaystyle \frac{3}{4} \le A \le 1} .

ncert-exemplar-class-11-maths-chapter-3-trigonometry-functions-example-1 03:50

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 1

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 1 A circular wire of radius 3 cm is cut and bent so as to lie along the circumference of a hoop whose radius is 48 cm. Find the angle in degrees which is subtended at the centre of hoop.

prove-that-sec8%ce%b8%e2%88%921-sec4%ce%b8%e2%88%921tan8%ce%b8-tan2%ce%b8 06:56

Prove that (sec8θ−1)/(sec4θ−1)=tan8θ/tan2θ

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 6: Prove that { \displaystyle \frac{sec8\theta-1}{sec4\theta-1}=\frac{tan8\theta}{tan2\theta}}

find-the-value-of-tan9-tan27-tan63-tan81 07:54

Find the value of tan9°–tan27°–tan63°+tan81°

NCERT Exemplar Class 11 Maths Chapter 3 Trigonometry Functions Example 5: Find the value of tan9°–tan27°–tan63°+tan81°