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Trigonometric equations are equations that involve trigonometric functions like sine, cosine, tangent, etc. The principal solutions of a trigonometric equation are the solutions that lie within a single period of the function i.e.. 0 to $2\pi$ Principal Solution: The solution in the range $0 \le x \le 2\pi$ How to find the Principal Solutions We can […]
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The cosine function, often denoted as cos(x), is a fundamental trigonometric function with a wide range of applications in mathematics, physics, and engineering. In this article, we will specifically discuss the value of the cosine function when its argument is zero, or cos(0), and its significance in various domains. Value of Cos 0 Value of
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In this post ,we will see how we can write all the Trigonometric ratios of angle A in the terms of sin A. Here we would be focusing on acute angle A only Value of Cos A in terms of sin A From Trigonometric Identity $\sin ^2 A + \cos ^2 A= 1$or$\cos ^2 A
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Prime Numbers
A prime number can be divided, without a remainder, only by itself and by 1. For example, 19 can be divided only by 19 and by 1.
Interesting facts about prime
•The only even prime number is 2. All other even numbers can be divided by 2.
•If the sum of a number’s digits is a multiple of 3, that number can be divided by 3.
•No prime number greater than 5 ends in a 5. Any number greater than 5 that ends in a 5 can be divided by 5.
•Zero and 1 are not considered prime numbers.
•Except for 0 and 1, a number is either a prime number or a composite number. A composite number is defined as any number, greater than 1, that is not prime.
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This post is all about how you can easily solve electric force and electric field problems. At a glance problems of physics can seem to be scary and overwhelming for some students but do not worry all you need to do is your willingness to solve problem. So first of all you need to read your problem carefully and then start using following protocol to solve your problems. The procedure I am going to write is for calculating electric forces but you can use the same procedure to calculate an electric field by simply replacing the charge of interest, q, with a convenient test charge and dividing by the test charge at the end. So, to calculate the force,
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This page consists of Science CBSE sample papers for class 9. A downloadable copy of this page is also available at the bottom of the page. So all the best for your exams. If you like the content do not forget to like share or comment at the section given below. you will find extra
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Introduction about physics and studying the subject This article is mainly about use of units in physics. But before going further let us first discuss about how to avoid problems that students face while studying physics. When you study physics you must have appropriate skills or you would have to struggle a lot while studying
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In this article electrostatics in physics learn about what electrostatics is all about and about its industrial applications. Electrostatics in Physics Electrostatics is the study of electric charges at rest. Coulomb’s Law explains the relationship between two or more electric charges. In electrostatics, we do not concern with the movement of charges. Electrostatics involves electric
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