Question

Python

For any two positive integers,a and b HCF(a,b)xLCM(a,b)=

Dx/sin²xcos²x

1 + tan ²A
__________=
1+cot ² A

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You not have material for science

Which method of concentration of ore is preffered in the following case and why???
1 The ore has higher density particles mixed with a large bulk of low density impurities

2 the ore consist of copper sulphate intermixed with clay particles

An object of mass 1 kg travelling in a straight line with a velocity of 10 MS minus one called in with and stick to a stationary wooden block of mass 5 kg then they both move of together in the same straight line calculate the total Momentum just before the impact and justify after the impact also calculate the velocity of combined object

Fig. 6.1, if AB || CD || EF, PQ || RS, ZRQD = 25 deg and angle CQP = 60 deg then ZQRS is equal 

Tan^-1(1/x)=cot^-1x,x>0

The adjacent figure hope is a parallelogram find the angle measure X y and z state the properties you use to find them class 8

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Science subject 

Prove that tan3x tan2x tan x = tan 3x - tan 2x - tan x

ve solve it according to class 10th math chapter statistics 
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What is your name

Fr kyu rir

can u find the answer like this

Why is it for both and y
Like let xbe that and ybe that