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Prove: (sin A + cos A) (1 - sin A cos A) = sin^3 A + cos^3 A

Posted by Jahnavi Suthar 2 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Snehitha Snehitha 2 years, 2 months ago

Answer

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If U = {1,2,3,4,……..,10} is the universal set for the sets A = {2,3,4,5} and B = {1,2,3,4,5,6}, then verify that (A∪B)'' = A''∩B''.

Posted by Yaisk Jwlw 2 years, 2 months ago

CBSE > Class 11 > Mathematics

2 answers

Inayat Kashyap 2 years, 2 months ago

, U={1,2,3,4,5,6,7} A={1,2,5,7} B={3,4,5,6} (A∪B)′=U−(A∪B) ={1,2,3,4,5,6,7}−{1,2,3,4,5,6,7} =ϕ A′∩B′=(U−A)n(U−B) ={3,4,6}n{1,2,7} =ϕ Hence (A∪B)′=A′∩B′.

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Himanshu Singh Chauhan 1221 2 years, 2 months ago

7,8,9,10=7,8,9,10

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Workout for the day of week on 18th October 2100

Posted by Arav Jain 11 months, 3 weeks ago

CBSE > Class 11 > Mathematics

1 answers

Yashi Agrawal 2 years, 1 month ago

Monday

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A={2,3} , B={x:x is a solution of x^2+5x+6=0}

Posted by Ritu Sinha 2 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Himanshu Singh Chauhan 1221 2 years, 2 months ago

B=(1,-6)

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Arav Jain 2 years, 2 months ago

X= teri mak ki chu

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Write the following sets in the roster form. a) A = {x : x2 + x , x ∈ R }

Posted by Daksh Kumar 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Aditi Tiwari 2 years, 3 months ago

In roster form :- {2,6,12,16,20,.........}

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If f( x) is a quadratic function, p(l)=a , p (m) = b and p(n) = c , then find p(x)

Posted by Bittu Shaw 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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Chapter 8 binomial theorem (200-1/2)⁵

Posted by Kishanvir Kishanvir 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(200-1/2)⁵

Posted by Kishanvir Kishanvir 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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Find the modulus (1-i/1+i)^100

Posted by Gunjan Kashyap 2 years, 3 months ago

CBSE > Class 11 > Mathematics

2 answers

Aditi Tiwari 2 years, 3 months ago

√1 =1 hence modulus of (1-i/1+i)¹⁰⁰ is 1

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Aditi Tiwari 2 years, 3 months ago

(1-i/1+i)¹⁰⁰ Multiple with conjugate of denominator =(1-i*1-i/1+i*1-i)¹⁰⁰ =(1-i-i+i²/1-(i)²)¹⁰⁰ =(1-2i+(-1)/1-(-1))¹⁰⁰ =(-2i/2)¹⁰⁰ =(-i)¹⁰⁰ =(-i)⁴*²⁵+⁰ =(1)¹⁰⁰ =1 In complex form =1+0i |z|= √1²+0² |z|=√1

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To make the project to analyze y= x² graph, specifying possible domain and range

Posted by Bittu Shaw 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Tan2alpha- tanalpha=tanalpha. Sec2alpha

Posted by Ridhima Pillania 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sinx/2

Posted by Tanya Bansal 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

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What is composite number

Posted by Upendranath Mahato 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Gunjan Kashyap 2 years, 3 months ago

That come in other tables

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Pie chart of agriculture in punjab

Posted by Dilpreet Kaur 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Dilpreet Kaur 2 years, 3 months ago

Pie chart of agriculture in punjab

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Evaluate: i + i ^ 2 + i ^ 3 + i ^ 4 +***......+i^ x where, {x: x is number of primes less than 73]

Posted by Aditi Kashyap 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Ankit Class 2 years, 1 month ago

36i-35

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Analysis of career graph of a cricketer (batting average for a batsman and bowling average for a bowler). Conclude the best year of his career.

Posted by Suryanarayana Pydi 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Intervals of subset And Operations of subsets

Posted by Aditya Kedia 2 years, 2 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Intervals of subset And Operations of sets

Posted by Aditya Kedia 2 years, 3 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

A woman is 6 years younger to her husband and he is 5 times as old as his daughter.if daughter was 7 years old 2 years backs .what is the present age of women

Posted by Pashupati Yadav 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Pashupati Yadav 2 years, 3 months ago

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If 16+4x is 10 more than 14 , what is the value of 8x

Posted by Pashupati Yadav 2 years, 3 months ago

CBSE > Class 11 > Mathematics

1 answers

Pashupati Yadav 2 years, 3 months ago

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Evaluate 123 123 345 In expansion determinant

Posted by Subin Pradhan 2 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

A=[0,3] , B =[1,4], then write (A-B)U(B-A).

Posted by Account Deleted 2 years, 4 months ago

CBSE > Class 11 > Mathematics

4 answers

Himanshu Singh Chauhan 1221 2 years, 2 months ago

)A-B)={0,3}U(B-A)={1,4} (0134) answer

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Daksh Kumar 2 years, 3 months ago

Ans is -{ 0,1,3,4 }

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Jiyaaaaaaaaaa Sood 2 years, 4 months ago

A-B={0,3} B-A={1,4} So (A-B)U(B-A)={0,1,3,4}

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Saurabh Sharma 2 years, 4 months ago

Ans- {0, 1,3,4}

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Find sqaure root of 1+i

Posted by Simran Kaur 2 years, 4 months ago

CBSE > Class 11 > Mathematics

2 answers

Jiyaaaaaaaaaa Sood 2 years, 4 months ago

Let tye square root of 1+i =root over 1+i Root over 1+i=x+iy By Squaring both sides We get , 1+i=(x+iy)² 1+i=x²+y²i²+2xyi As we know that i²=-1 So,, 1+i=x²-y²+2xyi Now compare real part and imaginary part on both sides... 1=x²-y²----1 equation 1=2xy------2equatiin We know a identwe says that (x²+y²)²=(x²-y²)²+(2xy)² Now put the values in this identity On adding and subtracting the above equations , we get ∴x2=22+1 and y2=22−1. ∴x=±22+1andy=±22−1 So, by equation (1), 1−i=22+1−i22−1 Ans: 1

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Aryan Choudhary 2 years, 4 months ago

Bjkkikgg

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Formula of gp

Posted by Sahilpreet Singh 2 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

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How many sets

Posted by Namrata Yadav Yadav 2 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Mohit Kumar 2 years, 3 months ago

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Find the equation of the parabola with focus (2, 0) and directrix x = -2 and also length of latus rectum.

Posted by Animesh Raj 2 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Prakash Sonali 2 years, 5 months ago

The focus of parabola is F ( 2,0 ) and it's directrix is the line x =-3

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Posted by Rohit Sharma 2 years, 5 months ago

CBSE > Class 11 > Mathematics

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Competitive exams are considered an egalitarian way to select worthy applicant without risking influence pending bias or other Concerns self motivated and hard worker candidate find this exam Very simple to clear a prestigious competitive exam to get admission In a world reputed college a student has 75% chance of passing in at list one subject out of three subjects A, B and C 50% chance of passing In at least two subjects and 40% chance of passing exactly two subject Based on above information , answer following questions. 1)what is the value of P ( A U B U C) ?

Posted by Bicky Paswan 1 year, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

farmer, Ramgarh, took a bank loan from SBI for repairing his house. But he could not pay the amount on time. This resulted in the accumulation of interest and the amount pay reached Rs. 1, 00,000. After a few months, the farmer opened a shop that resulted in enough income and the income increased on a regular basis. So he decided to pay the bank loan in a different manner. The farmer visited the bank. He made an agreement with the bank that he will start paying the amount of Rs.1, 00,000 without interest from January 2020. In January 2020 he will pay Rs.5000 and will increase the payment by Rs.100 in each month, as shown in the figure. Now answer the following questions. i) In how many months will the farmer clear the loan amount? * 1 point a) 16 b) 15 c) 18 d) 20 ii) How much amount he has to pay in the last month in rupees?* 1 point a) 1400 b) 1500 c) 1800 d) 2000 This is a required question iii) In which month he will pay Rs. 6000? * 1 point a) 14th b) 10th c) 12th d) 11th iv) How much amount in rupees till 10th month he will have paid? * 1 point a) 54500 b) 50000 c) 55000 d) 60000

Posted by Soumya Sarthak 2 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Guru Prasanna 1 year, 8 months ago

18,1400,11,6400

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Let A and B be two sets such that n(A) =20 , n(A∪B)=42 nd n(A∩B)=4 Find n(B), n(A-B) and n(B-A)

Posted by Sreehari J 2 years, 5 months ago

CBSE > Class 11 > Mathematics

1 answers

Preeti Dabral 2 years, 5 months ago

Solution is given below:

{tex}\begin{aligned} & n(A \cup B)=n(A)+n(B)-n(A \cap B) \\ & n(B)=42-20+4=26 \\ & n(A-B)=n(A)-n(A \cap B)=20-4=16 \\ & n(B-A)=n(B)-n(A \cap B)=26-4=22 \end{aligned}{/tex}

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