Math, asked by RAJA021528, 12 days ago

Find the value of sin480° cos 690° + cos 780°. sin 1050° + sin 780° sin 480° + cos 240°.cos 300°. Find the value of (i) cot 15750 (ii) cos 12300

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Answered by pshinekumari7739

Answer:

1 is the answer.

Use trignometry formulas and solution is there...hope this helps.

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Find the value of sin480° cos 690° + cos 780°. sin 1050° + sin 780° sin 480° + cos 240°.cos 300°. Find the value of (i) cot 15750 (ii) cos 12300​

Answers

Find the value of sin480° cos 690° + cos 780°. sin 1050° + sin 780° sin 480° + cos 240°.cos 300°. Find the value of (i) cot 15750 (ii) cos 12300