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Akhand Tripathi

· started a discussion

· 1 Months ago

shortcut (Question: 191711.0 )

any shortcut for this???

Question:
If cos\(\theta\)= \(\cfrac{1}{7}\) and, cos\(\phi\) = \(\cfrac{13}{14}\), then \((\theta - \phi)\) the value of  is – 
Options:
A) 30º
B) 45º
C) 60º
D) 120º
Solution:
Ans: (c)


Pooja Bansal

· commented

· 1 Months ago

provide solution
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