Math, asked by sr7149977, 7 months ago

evaluate the following. cos² 42⁰ - sin² 48⁰.

Answers

Answered by prashast74

0

Step-by-step explanation:

4(cos²48∘+cos²42∘)cosec²(90∘−θ)−tan²θ−cosec²70∘−tan²20∘2tan²30∘sin²38∘sec²52∘

Previous Question

Next Question

Similar questions

Social Sciences, 3 months ago

case study on splendor music company...

Computer Science, 3 months ago

..................... statement is used to retrive record in the data base...

Math, 3 months ago

The degree of the polynomial 5x^3 - 2x^2 + 1 is?

History, 7 months ago

short note on solverien...

English, 7 months ago

Which of the following is an example of the present continuous tense? Choose one. They are waiting to buy tickets. They waited to buy tickets. They wait to buy tickets. Submit answer...

Math, 11 months ago

Rationalize the denominator 1÷√5+√2-1...

English, 11 months ago

What are the different ways of expressing past habit in english ?give examples...

English, 11 months ago

What is the meaning of frontiers of space...