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Cos X/1-sin X+1-sin X/cos X=2 sec X prove that

Posted by Shivani Sharma 3 years, 5 months ago

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Three Haryana Roadways buses stop after 50,100,and, 125 km respectively. If they live together, then after how many kilometre will they stop together

Posted by Ankit Kumar 3 years, 5 months ago

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Ankit Kumar 3 years, 5 months ago

Give answer

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Write the power set of

Posted by Yashika Changra 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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Lata Kumari 3 years, 5 months ago

A power set is a set of collection of all the subsets of a set

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How many Basic theorems are there in Class 10 and which are deleted among it

Posted by Varun Shenoy 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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Bhaduram Hembra 3 years, 5 months ago

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prove that: sin5x =5cos^4x sin x-10cos^2x sin^3x+sin^5x

Posted by Yashvi Gupta 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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Evaluate Cos930

Posted by Apple ☆ 3 years, 5 months ago

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Calculate the arithmetic mean of a,a+d,a+2d,........a+(n+1)d

Posted by Swayamshree Rout 3 years, 5 months ago

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√3-1/√3+1=2-√3= how?? Pls help

Posted by Deepak Gupta 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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Ishita Gupta 3 years, 5 months ago

By rationalising.. (√3-1/√3+1)×(√3-1/√3-1) = (√3-1)²/(√3)²-(1)²[(a+b)(a-b)=a²-b²] = (3+1-2√3)/2 [(a-b)²=a²+b²-2ab] = (4-2√3)/2 = 2(2-√3)/2 = 2-√3= RHS

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If z and z1 are complex no. Such that 2z/3z1 is purely imaginary then prove that!z-z1/z+z1!=1

Posted by Abdul Samad 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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Write the following (1-2) as complex number 1: √_27

Posted by Khushpreet Kaur Beniwal 3 years, 5 months ago

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Let S ={a€N, a≤100} If the equation [tan2x]-tanx-a=0 has real roots then number of eliments in S is , (where [.] represents the greatest integer function)

Posted by Suma Gondkar 3 years, 5 months ago

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if a b c are any three sets then a-(buc) is equal to

Posted by Henil Unadkat 3 years, 5 months ago

CBSE > Class 11 > Mathematics

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❤️Ritesh Gupta? 3 years, 5 months ago

Jjddkd

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Gurleen Singh 3 years, 5 months ago

Let x be any element of A - (B ∩ C). Then, x ∈ A - (B ∩ C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ (A - B) or x ∈ (A - C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ (A - B) or x ∈ (A - C) ⇒ x ∈ (A - B) ∪ x ∈ (A - C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ (A - B) or x ∈ (A - C) ⇒ x ∈ (A - B) ∪ x ∈ (A - C) ∴ A - (B ∩ C) ⊆ (A - B) ∪ (A - C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ (A - B) or x ∈ (A - C) ⇒ x ∈ (A - B) ∪ x ∈ (A - C) ∴ A - (B ∩ C) ⊆ (A - B) ∪ (A - C) Similarly, (A - B) ∪ (A - C) ⊆ A - (B ∩ C) ⇒ x ∈ A and x ∉ (B ∩ C) ⇒ x ∈ A and (x ∉ B or x ∉ C) ⇒ (x ∈ A and x ∉ B) or (x ∈ A and x ∉ C) ⇒ x ∈ (A - B) or x ∈ (A - C) ⇒ x ∈ (A - B) ∪ x ∈ (A - C) ∴ A - (B ∩ C) ⊆ (A - B) ∪ (A - C) Similarly, (A - B) ∪ (A - C) ⊆ A - (B ∩ C) Hence, A - (B ∩ C) = (A - B) ∪ (A - C) Step-by-step explanation: HOPE THIS WILL HELP YOU THANKS?

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What are the subsets of the set A={phi,1}?

Posted by Roushan Kumar 3 years, 5 months ago

CBSE > Class 11 > Mathematics