The anwser is one and two tenths
Answer:

Step-by-step explanation:
Given: 
We have to find the value of 
Since Given 
Using trigonometric identity,

Thus, for
comparing , we have,

We get,

Thus, 
Answer:

Step-by-step explanation:
Use tangent:

We have:


Substitute:
<em>multiply both sides by 14</em>

Answer:
10
Step-by-step explanation:
HCF of 20, 40 & 50:
20: 1, 2, 4, 5, 10, 20
40: 1, 2, 4, 5, 8, 10, 20, 40
50: 1, 2, 5, 10, 25, 50
HCF: 10
Topic: HCF and LCM
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Answer:
B: 6 to the 10th over 7 to the 6th
Step-by-step explanation:
(6^5 / 7^3)^2
We know that (a /b) ^c = a^c / b^c
(6^5)^2 / (7^3)^2
We know that a power to a power is the powers multiplied a^b^c = a^(b*c)
6^ (5*2)/ (7^(3*2))
6^10/(7^6)
Since the bases are not the same, there is nothing else we can do