सोडोवचें (4)2cos^222*5^circ-1

$$( 4 ) 2 \cos ^ { 2 } 22 \cdot 5 ^ { \circ } - 1$$

मूल्यांकन करचें

$$-1.93582222752408767836246641727752$$

सोडोवणी पांवडे

समस्येंत आशिल्लीं त्रिकोणमिती कार्यां मूल्यांकीत करचीं

$${(4)} \cdot 2 \cdot -0.3420201433256687 ^ {2} - 1$$

8 मेळोवंक 4 आनी 2 गुणचें.

$$8\left(-0.3420201433256687^{2}\right)-1$$

0.11697777844051095979530830215969 मेळोवंक 2 चो 0.3420201433256687 पॉवर मेजचो.

$$8\left(-0.11697777844051095979530830215969\right)-1$$

-0.93582222752408767836246641727752 मेळोवंक 8 आनी -0.11697777844051095979530830215969 गुणचें.

$$-0.93582222752408767836246641727752-1$$

-1.93582222752408767836246641727752 मेळोवंक -0.93582222752408767836246641727752 आनी 1 वजा करचे.

$$-1.93582222752408767836246641727752$$

गुणकपद

$$-1.93582222752408767836246641727752$$