Question
Suppose, (√(5a+9) )+ (√(5a-9)) = 3(2+√2), then
√(10a+9) will be equal to?Solution
Given,
Set x = √(5a+9 and y = √(5a-9,
Giving x+y = 3(2+√2)
Square both sides, we get = (x+y)2 = 54+36√2.
By using x2 + y2 = 10a
On solving for 10a = 54,
So, 10a+9 = 63
Hence, √(10a+9) = √63 = 3√7
Which nation has honoured Prime Minister of India Narendra Modi with the country’s highest honour bestowed on foreign leaders ‘Mitra Vibhushana’ i...
Who among the following had written the novel Coolie, that concentrated on social misery caused by inhumanity?
Which of the following metals in pure form has the highest melting point?
Australia approves commercial release of genetically modified variety of which Indian crop?
Which of the following is included in the 'Cost of Inventory' according to Accounting Standard-2 (Inventory Valuation):
In a certain code language, 'MUSIC' is written as 'LTTJD', and 'CONCEPT' is written as 'BNMDFQU'. How will 'SINGING' be written in that language?
In which state is Kathak dance performed?
The National Highways Authority of India (NHAI) aims to develop around 10,000 km of Optic Fibre Cables (OFC) infrastructure by which fiscal year?
Which among the following books is not written by Arundhati Roy?
With the inclusion of Garba in 2023, how many cultural items from India have been featured on the UNESCO list of Intangible Cultural Heritage?
