Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

Trigonometric Functions

Short Answer Type

261.

Find the values of:

$space space sin space 105 degree comma space cos space 105 degree comma space tan space 105 degree.$

108 Views

262.
Prove that: $sin space 105 degree space plus space cos space 105 degree space equals space fraction numerator 1 over denominator square root of 2 end fraction$

Solution not provided.

108 Views

263.

Show that: $space space tan open parentheses straight pi over 12 close parentheses plus cot open parentheses straight pi over 12 close parentheses equals 4$

111 Views

264.

Write down the values of:

$cos space 72 degree space cos space 12 degree space plus space sin space 72 degree space sin space 12 degree$

101 Views

265.

Write down the values of:

$sin space 72 degree space cos space 18 degree space plus space cos space 72 degree space sin space 18 degree$

89 Views

266.

Show that:

$fraction numerator cos 11 degree minus sin 11 degree over denominator cos 11 degree plus sin 11 degree end fraction space equals space tan space 34 degree$

105 Views

267.

Show that:

$fraction numerator cos 15 degree plus sin 15 degree over denominator cos 15 degree minus sin 15 degree end fraction space equals space square root of 3$

101 Views

268.

Show that:

$sin open parentheses fraction numerator 2 straight pi over denominator 9 end fraction plus straight theta close parentheses space cos open parentheses straight pi over 18 plus straight theta close parentheses minus cos open parentheses fraction numerator 2 straight pi over denominator 9 end fraction plus straight theta close parentheses space sin open parentheses straight pi over 18 plus straight theta close parentheses space equals space 1 half$

101 Views

269.

Show that:

$sin left parenthesis 2 straight n plus 3 right parenthesis straight x space sin left parenthesis 2 straight n plus 1 right parenthesis space straight x space plus space cos space left parenthesis 2 straight n plus 3 right parenthesis straight x space cos left parenthesis 2 straight n plus 1 right parenthesis straight x space equals space cos space 2 straight x$

99 Views

270.

Show that:

$sin left parenthesis straight n plus 2 right parenthesis straight x space cos left parenthesis straight n plus 1 right parenthesis straight x space minus space cos left parenthesis straight n plus 2 right parenthesis straight x space sin left parenthesis straight n plus 1 right parenthesis straight x space equals space sinx$

102 Views

Previous Year Papers

Test Series

Test Yourself

Short Answer Type

262. Prove that:

262.
Prove that: $sin space 105 degree space plus space cos space 105 degree space equals space fraction numerator 1 over denominator square root of 2 end fraction$