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PUNAM BHANDARI

· started a discussion

· 1 Months ago

explain (Question: 186596.0 )

Cos90 is 0..and you too solved as cos90 is 0 in solution but mark 1 as a answer out of 4 option..please check it out

Question:
If tan\(\theta\) \(\theta\) = 1 and \(sin\ \phi= \cfrac{1}{\sqrt{2}}\)\(sin\ \phi=\cfrac{1}{\sqrt{2}}\) , then the value of cos\((\theta+\phi)\) \((\theta+\phi)\) is–
Options:
A) –1
B) 0
C) 1
D) \(\cfrac{\sqrt{3}}{2}\)
Solution:
Ans: (B) 


Knowledge Expert

· commented

· 1 Months ago

@PUNAM BHANDARI

Dear Student,

Its Okay

Hope you have a great learning with us!!

All the Best,
Team Toprankers

Talented Boy

· commented

· 1 Months ago

Yet to be approved!

PUNAM BHANDARI

· commented

· 1 Months ago

ohh sorry..i was wrong..option mey bhe 0 par tick h..
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