Answer:
The value of given trigonometrical expression is cos²x + sin²x = 1
Step-by-step explanation:
Given trigonometrical expression as :
( ) - sec x = tan x
Or, ( ) = tan x + sec x
or, ( ) = ( ) + ( )
or, ( ) = ( )
Now, cross multiplying both side
I.e (cos x) × (cos x) = ( 1 - sin x ) × ( 1 + sin x )
or, cos²x = 1 - sin² x
or, cos²x + sin²x = 1
So, Value of expression is cos²x + sin²x = 1
Hence The value of given trigonometrical expression is cos²x + sin²x = 1 answer
Should be A if I’m not mistaken
I assume this is by hand, but you can always check with a calculator
<span> 3(7 + 4)^2 − 14 ÷ 7
3(11)</span>² -- 14 ÷ 7
3(121) - 14÷7
363 - 2
= 361
Answer:
t = 350
Step-by-step explanation:
subtract 250 from each side, and then you'll have t = 350
Divide: 1
4
: 9
10
= 1
4
· 10
9
= 1 · 10
4 · 9
= 10
36
= 5
18
To divide one fraction by another, invert (turn upside-down) the second fraction, then multiply.