Find the value of: cot22°.cot23° -cot22° -cot23° = 1 
Answer:


As we had been discussing continuously in our latest posts, if you have the questions where the given angles are unknown to you. You don't know the Trigonometric values of those angles without using calculator then, you need to either sin or difference the given angles and get to an angle whose value is already known to you!

In their case, we have: 22° and 23° and if we sum both these then we get 45°. Now, using the formula of compound angles, we can easily solve the equation: 22° +23° = 45° by taking cot on both sides. Since this equation is true our answer will also be true!

Here is a little help form my side to you!


All the best for solving further more questions of Trigonometry in mathematics.

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