Answer:
Given that we have;

By the application of the law of indices and algebraic process of adding a and subtracting a fraction from a whole number, we have;

Step-by-step explanation:
An identity is a valid or true equation for all variable values
The given equation is presented as follows;

From trigonometric identities, we have;






4/5. 2/3 divided by 5/6 is equivalent to 2/3 multiplied by 6/5, so the answer is 4/5.
Step-by-step explanation:
Find two numbers that multiply to give ac (in other words a times c), and add to give b.
Rewrite the middle with those numbers:
Step 3: Factor the first two and last two terms separately:
Answer:
See explanation
Step-by-step explanation:
Given


Required
Find x
The question is incomplete, as the relationship between both angles is not given
(1) If they are supplementary, then


Collect like terms


Divide both sides by 7

(2) If they are complementary, then


Collect like terms


Divide both sides by 7

(3) If they are vertically opposite angles, then

So, we have:

Collect like terms


Distributive property then additive inverse