सोडोवचें cos(75^circ)cos(105^circ)+sin(75^circ)sin(105^circ)

$$\cos ( 75 ^ { \circ } ) \cos ( 105 ^ { \circ } ) + \sin ( 75 ^ { \circ } ) \sin ( 105 ^ { \circ } )$$

मूल्यांकन करचें

$$0.866025403784438655459800018657461$$

सोडोवणी पांवडे

समस्येंत आशिल्लीं त्रिकोणमिती कार्यां मूल्यांकीत करचीं

$$0.25881904510252074 \cdot -0.25881904510252085 + 0.9659258262890683 \cdot 0.9659258262890683$$

-0.066987298107780693519592063407429 मेळोवंक 0.25881904510252074 आनी -0.25881904510252085 गुणचें.

$$-0.066987298107780693519592063407429+0.9659258262890683\times 0.9659258262890683$$

0.93301270189221934897939208206489 मेळोवंक 0.9659258262890683 आनी 0.9659258262890683 गुणचें.

$$-0.066987298107780693519592063407429+0.93301270189221934897939208206489$$

0.866025403784438655459800018657461 मेळोवंक -0.066987298107780693519592063407429 आनी 0.93301270189221934897939208206489 ची बेरीज करची.

$$0.866025403784438655459800018657461$$