Function question 3 for powerplay

What is the range of

1) sin(cos(tan x)))?

2) cos(sin(tan x)))?

3) tan(cos(sin x)))?

26 Answers

1
voldy ·

maybe my glb is wrong , but sure of the lub it's 1. I'll try and tell.

3
msp ·

sir wat abt the 6th and the 8th post,no background

1
Akshay Pamnani ·

Thanx Nishant Bhaiya
But wat is this powerplay thing??

62
Lokesh Verma ·

akshay is correct...

Guys dont feel bad.. but this was not as tough a question.... You should have nailed it......

Well done akshay... :)

1
kunalb Bhattacharya ·

range of

1) sin(cos(tan x)))=[-1,1]

2) cos(sin(tan x)))=[-1,1]

3) tan(cos(sin x)))=[-∞,∞]?

11
Anirudh Narayanan ·

Thanx machan[3]

1
Akshay Pamnani ·

Tanx has a range (-∞,∞)
so the angle for Sin has all values
so Sin wil give values from [-1,1]
Now Cos is an even function and increases from [-1,0),and decreases from [0,1]
so max at 0 and min at 1or -1 that is cos1
draw the graph machan u will get it

11
Anirudh Narayanan ·

(2)

1
Akshay Pamnani ·

which one u want?

11
Anirudh Narayanan ·

How? [7]

1
Akshay Pamnani ·

3
[Tan(Cos1),Tan1]

1
Akshay Pamnani ·

2
[Cos1,1]

1
Philip Calvert ·

for 2 im getting [cos 1, cos 0]

1
skygirl ·

1) [sin-1, sin1]

62
Lokesh Verma ·

i did not understand this srinath... so what is the final answer?

1
voldy ·

ok . max of cos is 1 . so lub is 1 .i.e cos0 .

for glb I think it should be cos(1) .
hope it's right. :P

62
Lokesh Verma ·

no srinath..

1
voldy ·

2) [cos(-1) , cos(1) ]

62
Lokesh Verma ·

2 and 3 are both wrong!

3
msp ·

sky wont the cos(-1)=cos(1)

3
msp ·

3)[tan(cos1),tan1]

1
skygirl ·

3.) [tan(cos-1), tan(cos1)]

3
msp ·

2)[cos1,1]

62
Lokesh Verma ·

what about the other parts?

1357
Manish Shankar ·

sankara how can range be a single value!

1
skygirl ·

[12]

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