Lets start from LHS  and simplify it to get RHS. LHS = tanA + cotA  Put tanA = sinA / cosA   and cot A = cosA / sinA we get, = sinA / cosA + cosA / sinA  Taking LCM, = [ sin2A + cos2A] / sinA cosA  Put,  [ .....

How does Ram do his work? Why does Ram do his work properly? Does Ram do his work .....

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Here LHS is  sin51 + cos81 - cos21 Now using formula CosC - CosD = 2Sin[(C+D)/2]Sin[(D-C)/2] for 2nd  and 3rd terms, Sin51 + 2 sin( 81 + 21)/2 Sin ( 21 - 81 ) / 2 = sin51 + 2 sin 51 . sin ( - 30 ) = sin51 - 2 sin51 .....

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In the solution,  there is a slight mistake when finding the common ration. Taking 5/3 as common ratio (r) and 9/2 as first term (a), you will get t4 = ar3  or, t4 = 9/2 × (5/3)3  or, t4 = 125/6 Thus, the required .....

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You may know that the trisection of a line is divides the line in the ratio of 2:1. [Becuase a trisection is one third of the whole length of a line] Therefore, we use  the formula of internal section division in this question to find the .....

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Have you ever used knife in the kitchen to cut the fruits? Obviously, you must have. Here,knife exerts pressure on the fruit. Pressure is simply known as force perunit area. i.e. Pressure = Force /area The S.I unit of pressure is .....

For this, let us consider a container of area A and height h and density d which is shown in the figure below. You might have learned that pressure is simply force per unit area i.e Pressure = force/area P= Force       .....

We have given, LHS = cos10 + cos110 + 130 Using formula CosC + CosD = 2cos[(C+D)/2]cos[(D-C)/2]  for last two terms , we get = cos10 + 2 cos(110 + 130)/2 cos( 130 - 110)/2 = cos10 + 2 cos120 cos10 = cos10 + 2 x (- 1 / .....

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The given equation is: x2 + y2 - 4x - 6y + 11 = 0 or, x2 - 4x + 4 - 4 + y2 - 6y + 9 - 9 + 11 = 0 or, (x - 2)2 + ( y - 3)2 = 2  .......(i) Which is in the form of (x -a)2 + (y-b)2 = r2 ...........(ii) Where (a, b) is the center of .....

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First, heaven symbolizes the state of peace, love, joy, etc. The availability of these things in a country is what we call a heavenly nation. But, creating peace, love and joy in the nation is quite a challenging task. Establishing heaven in the .....

                               समयको महत्त्व

We should keep the notes clean for the following reasons: - Clean notes make transactions a pleasant task. - When the notes are clean, the security features are easily recognizable. - If the notes are clean, it is easy to find the genuine note .....

The diverse types of natural vegetation is useful for; - Establishing forest-based industries which contribute to the national economy. - Running animal husbandry which also contributes to the economic development of the country.   - .....

Let the two numbers be 8x and 3x respetively. Their GM = 1/4. But GM = (ab)^(1/2) or, 1/4 = (8x*3x)^(1/2) or, 1/4 = x*(24)^(1/2) or, 1/4 = x*2(6)^(1/2) Therefore, x  = 1/[8*(6)^(1/2)] Therefore the two numbers are 1/(6)^(1/2)  and .....

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Ceramics are generally made by taking mixtures of clay, earthen elements, powders, and water and shaping them into desired forms. Once the ceramic has been shaped, it is fired in a high temperature oven known as a kiln. Often, ceramics are covered .....

Polygamy is the practice of marrying multiple spouses. It is one of the evil practice which hinders the process of social development. The reasons behind this are given below: - It enhances the problem of gender inequality in the social .....

Given,   AB⃗.BC⃗=434 AB⃗ =  √34 units BC⃗ = 8 units Now,    AB⃗.BC⃗=AB⃗ xBC⃗ cosθ or, 4 √34 = √34 x 8 x cosθ  or, cosθ = 4 / .....

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It controls accomodation for viewing objects at varying  distance. By the contraction and expansion of ciliary muscles, the focal length of the lens is changed. Thus, if ciliary muscles stops functioning, the curvature of the lens of the eyes .....

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Please ask this question to the respective subject .....

Given, Length of the water tank (l) = 80 cm. Breadth of the water tank (b) = 80 cm. Height of the water tank (h) = 80 cm. Now, the volume (capacity) of the water tank = l x b x h = 80 x 80 x 80              .....

Average annual fee per student = Rs. 12,600. The education service charge = 1% Now, the education service charge should pay per student = 1% of Rs. 12,600                           .....

The four major religions .....

अर्थ भनेको कुनै पनि शब्दले त्यो भनेको के हो ? के काम गर्छ भन्ने कुरा जनाउँछ । त्यस्तै अनुमान .....

- एउटा समापक कृया सरल वाक्यमा हुनै पर्छ ।जस्तै: राम विद्यालय गयो ।उमेश वकिल बन्यो .....

The highest clouds in the atmosphere are cirrocumulus, cirrus, and cirrostratus. Cumulonimbus clouds can also grow to be very high. Mid-level clouds include altocumulus and altostratus. The lowest clouds in the atmosphere are stratus, cumulus, and .....

 पीत भनेको पहेँलो भन्ने हुन्छ । पीताम्बर भनेको पुजा पाठ गर्दा लगाइने पहेँलो वस्त्र हो , है त .....

तल दिएका उपसर्ग र प्रत्यय लगाई एक एकवटा शब्द निर्माण गर्नुहोस् ः उपसर्गः अभि, आ     प्रत्ययः .....

 अँह , विषेशण मात्र त होइन ।  अव्यय वर्गमा कहाँ विशेषण पर्छ र .....

हेर्नुहोस् है त वाक्य कसरी निर्माण गर्ने ।   भाइ घर गएर थपक्क पढ्न थाल्यो ।  चुच्चे  ढुङ्गो .....

The effects of being an alcoholic in family and society are mentioned below: The effects of being an alcoholic in a family: - The family may face financial problems. - Children can imitate the same thing as the .....

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Of course, untouchability refers to the discrimination of people on the basis of their caste. In our context, the so-called higher caste people neglect the so-called lower caste .....